When using tubing without an oxy

2021/05/21

When using tubing without an oxygen barrier, you must be careful to assure that each and every component in your system is non-ferrous (meaning that it contains no iron). Post comments and share your thoughts and opinions. PEX-AL-PEX is a layer of PEX, a layer of aluminum, and another layer of PEX. Their pressure at temperature ratings remain exactly identical listing at 79psi@200F, 100psi@180F, and 160psi@73F. It may be installed in concrete, gypsum-based lightweight concrete, sand, asphalt, in or under wood flooring, or behind wallboard or plaster. It is commonly used for everyday hot and cold water applications, along with potable water applications as well. External coating of oxygen barrier PEX tubing effectively prevents diffusion of oxygen molecules into the water through walls of the pipe. 67 49 0000112249 00000 n United States (US), Need to contact us? PEX-A is manufactured using the Engel method which results in the highest degree of crosslinking around 85 percent. Terms and Conditions of Sale| TermsofUse| PrivacyPolicy, {{vm.session.pickUpWarehouse.address1 + " " + vm.session.pickUpWarehouse.address2}}. This material is rated for direct burial and poured concrete installations. Temperature: 160 psi @ 73 F, 100 psi @ 180 F. Meet the Team. 0000006049 00000 n pex PEX is typically the easiest choice for installation purposes, but it has to be done right with all the variables accounted for. The oxygen barrier and rust prevention allows you to use cast iron components in your system instead of all brass or bronze, which makes components like pumps and flanges substantially less expensive and keeps them running smoothly for longer.

The first thing to know is that the color of the tubing does not specify what type it is, but is rather there for color coding purposes. Setting up a radiant heating system, plumbing system, or potable water system always requires a certain type of PEX tubing. | LearnMore, First inStock our scannable label program makes it easy to stock your shop with FirstSupply! It puts hundreds of thousands of products in the palm of yourhand! 0000103209 00000 n "|~~ &-vFw:y%=-| ]Qon>N[fz\eG gT'_C_#RaZiSP }&b=Php | Details. 0000110983 00000 n The main benefit of PEX-AL-PEX is that it holds its shape. PEX-A also offers a unique thermal and elastic memory which means kinks in the PEX can be repaired with the use of a heat gun. Older hePEX was manufactured with the same formula and would be safe in potable systems. Quality Radiant Heating PEX-A Tubing. 3/4 x 500 ft PEX-A Red Tubing with Oxygen Barrier. cn>e.6_K\SOU|8gh~?=}8}?9oobFrPw5GgFKIaE1WTV. Sign up to get the inside scoop on company news, special events, promotions, training opportunities and more! HVG}E,!!~0&d':IUmy|?^x &*QT7gyr|X Alpha PEX-A Tubing with Oxygen Barrier by PEX GUY can be used for radiant heating and potable water systems for both residential and commercial applications. 0000109504 00000 n dd@ AlxySdd*ctR#e1}caw\/NO6H@C;@ d[E4P,zto) i= v JAu.d(gc```z f`Jdd+s:3'SCOF> +#?>O(_O+##Ccbbb`|($j3pelF,| 16;1H, 8\ 3L If you have any questions just ask our knowledgeable staff! Oxygen in your system can be a problem that causes your system components to rust. The higher degree of crosslinking of PEX-A also offers greater durability in freeze/thaw cycles, keeping the integrity of the pipe intact. PEX-AL-PEX is a three-layer PEX Tubing that also has an oxygen barrier. Signup for our newsletter to get notified about sales and new products. %%EOF 0000011162 00000 n The tubing is compatible with Uponor ProPEX and QS fittings and is manufactured in full compliance to ASTM F876 (including dimensional requirements for barrier tubing), ASTM F877 and CSA B137.5. %PDF-1.5 % Regardless of which application needs to be installed one thing is for certain, there is definitely a type of PEX pipe to accommodate it. results in the highest degree of crosslinking around 85 percent. If you heat it with a match or torch carefully you may see that EVOH layer start to de-laminate from the tube. Making the decision of whether to use Barrier PEX, Non-Barrier PEX, or PEX-AL-PEX is largely based on what job you are going to use it for and what other components you will be working with. Rub it together and it will squeak. H\n0F Eb1?f&4(o?'S:EMiYmEMf/j!OoCK|=tmT{h.#qOiz&HpU'oCC~G5xEjPmQMMSsy252~aHg1]i]^u7^-n(LLz y 0000003296 00000 n 0000006683 00000 n PEX-A also offers a unique thermal and elastic memory which means kinks in the PEX can be repaired with the use of a heat gun. 0000001276 00000 n document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); Country * It often has a shiny gloss to it, compared to non barrier. For potable water applications, you will generally use non-barrier PEX. They are also extremely lightweight and flexible allowing for easy installation, as well as corrosion resistant. 3/8 X 500 Feet PEX with Oxygen Barrier Tubing Radiant, 3/4 x 300 Feet PEX for Potable Water (Red), 5/8 X 500 Feet PEX with Oxygen Barrier Tubing Radiant, Combo 3/4 x 300 Feet PEX for Potable Water (Blue and Red) 600 ft Total, Combo 1/2 x 1000 Feet PEX for Potable Water (Blue and Red) 2000 ft Total, 1 x 150 Feet PEX for Potable Water (Blue), 1 X 300 Feet PEX with Oxygen Barrier Tubing Radiant, 3/4 x 100 Feet PEX for Potable Water (Red), 1 x 300 Feet PEX for Potable Water (Blue). Most PEX manufacturers list what type of tubing it is directly on the pipe, among other pipe markings so the consumer is fully aware of what they have purchased. Most oxygen-barrier PEX does not have the appropriate approval codes for use with potable water and should not be installed in domestic plumbing applications. Compatibility with ASTM F1960 ProPEX expansion, ASTM F2080 compression and ASTM F1807 crimp fittings; Exceptional workability and flexibility;Kink repairability;DIN 4726 oxygen barrier; Polyethylene layer to protect from site damage and moisture; Technical, design and sales support from Uponor and25-year transferable limited warranty. PEX-AL-PEX is constructed the same way with an aluminum lining, making it an oxygen barrier pipe as well. Advantage of this method is the great flexibility, allowing the tightest bend radius to eliminate fittings and easier installation. 0000019147 00000 n Apollo PEX-B Oxygen Barrier Pipe Submittal Sheet, Max. PEX Tubing: Barrier vs Non-Barrier vs PEX-AL-PEX Once you have decided to use PEX, you have another decision to make: what kind? Made in the European Union We will explore the best products and technologies available today as well as provide you with our own feedback, tips, articles and more. Key differentiators include: Select diameters and coil lengths 25-year limited warranty Not for potable-water applications Uponor helioPEX X2 is rated and listed by the Hydrostatic Stress Board of PPI at 200F (93.3C) at 80psi, 180F (82.2C) at 100psi and 73.4F (23C) at 160psi and features an oxygen barrier that conforms to DIN 4726. 0000018498 00000 n It is usually not approved for use with potable water. Since oxygen from the air can penetrate PEX tubing (even when the PEX is embedded in a concrete slab), an oxygen barrier is needed in most heating systems. FnE_U}Uar;b a`;(]I}:I%5ioRqcaul OfSE%i:R9Rc#d'RQ4ti$GxPM BA8;H FGFpD8OA?t~2K p]i+446\6ShsCKk1m@uh7ik 4a)kh#l:F8%*{ h`Daml6#6e^2[9Z 100' 2" Non Oxygen Barrier Red PEX for heating and plumbing. <<2F60A5B942BF524C8B77A559F3B805AB>]/Prev 269029>> 0000111563 00000 n We encourage your feedback and participation. Yes, even if you don't have to use one. 0000023422 00000 n The Oxygen Barrier tubing exudes a glossy appearance, as the Non-Barrier tubing resembles a matte. 0000007773 00000 n NSF Certified to ASTM Standard ensure that it meet or exceeds USA quality standards. /E0 41HCB Our blog is dedicated to all facets of our industry. Most people are left fazed when deciding which type of PEX to use, but with all this information the only question that should be remaining is what application the consumer is trying to set up. Oxygen Barrier PEX pipe may also be used as transfer lines for baseboard heating systems with a maximum operating temperature of 200 F @ 100 psi. Both types of PEX pipe have many similarities as well. Non-barrier tubing is simply PEX tubing without the oxygen barrier.

0000018203 00000 n Oxygen barrier PEX is made for heating applications and has thus not been approved for plumbing and drinking water. The Non-Barrier tubing is extremely popular due to its high chlorine resistance and standards corresponding to the lead free act. Advantage of this method is the great flexibility, allowing the tightest bend radius to eliminate fittings and easier installation. A layer of polymer is laminated to the outside surface which is highly resistant to the passage of oxygen. 0000003689 00000 n Typical condensate from a condensing boiler has a pH level of 3.2 to 4.5, which is a Clearflow fittings, by Precision Plumbing Products (PPP), protect your plumbing system through an exclusive steel-to-plastic design that Industrial pipe freeze protection systems are intended to prevent the freezing of fluids in pipes. 3/8" Pex Tubing 1/2" Pex Tubing 3/4" Pex Tubing, 1" Pex Tubing 1 1/4" Pex Tubing 1 1/2" Pex Tubing, 1 1/2" 500' Non Oxygen Barrier Blue PEX tubing for heating and plumbing, 1 1/4" 100' Non-Oxygen Barrier Red PEX tubing for heating and plumbing, 1' - 300' coil - RED Certified Non-Barrier PEX Tubing Htg/Plbg/Potable Water, 1 1/2" 100' Non Oxygen Barrier Blue PEX tubing for heating and plumbing, 3/4" - 500' coil-RED Certified Non-Barrier PEX Tubing Htg/Plbg/Potable Water, 1 1/2" 250' Non Oxygen Barrier Blue PEX tubing for heating and plumbing, 1 1/4" 250' Non Oxygen Barrier Red PEX Tubing for heating and plumbing, 100' 2" Non Oxygen Barrier Blue PEX tubing for heating and plumbing. 0000003802 00000 n Emerson Swan, Inc. is a manufacturer's representative serving New England, Upstate New York, Western Pennsylvania and the Greater Toronto Area with quality residential and commercial plumbing, heating and HVAC equipment. All rights reserved. xref As always hePEX carries the PEX-A grade, making it more flexible and easier to work with than PEX-B and PEX-C pipe. Their pressure at temperature ratings remain exactly identical listing at 79psi@200F, 100psi@180F, and 160psi@73F. 0000110644 00000 n Enter your e-mail address below to have your password reset. 0000030518 00000 n Most oxygen-barrier PEX does not have the appropriate approval codes for use with potable water and should not be installed in domestic plumbing applications. With PEX-AL-PEX, once you bend it, it will hold that shape until you bend it again. Once you have decided to use PEX, you have another decision to make: what kind? Named one of the best companies to work for in New York! Edmonton, AB T5H 0X1, Atta Boy Inspections Pex Piping Oxygen Barrier, A Booming Real Estate Market Needs Home Inspections, Atta Boy Inspections Tankless Water Heaters, Atta Boy Inspections Spring Clean Up Tips, Atta Boy Property Inspections Fire Places, Water Pressure Systems and Trickle Systems. NSF Certified to ASTM Standard ensure that it meet or exceeds USA quality standards. This field is for validation purposes and should be left unchanged. 67 0 obj <> endobj 0000001677 00000 n 1' - 500' coil - RED Certified Non-Barrier PEX Tubing Htg/Plbg/Potable Water, 1 1/2" 500' Non Oxygen Barrier Red PEX tubing for heating and plumbing, 1 1/2" 100' Non Oxygen Barrier Red PEX tubing for heating and plumbing, 3/8" - 1000' coil - RED Certified Non-Barrier PEX Tubing Htg/Plbg/Potable Water, 1' - 250' coil -RED Certified Non-Barrier PEX Tubing Htg/Plbg/Potable Water, 1 1/2" Non Oxygen Barrier PEX tubing 1-BLUE 100' 1-RED 100' 200' Total, 1/2" 500' TOTAL~250' RED&250' BLUE Certified Non-Barrier PEX B Tubing, 3/4" 600'~300' RED & 300' BLUE Certified Non-Barrier PEX Tubing Htg/Plbg, 1 1/4" 500' Non Oxygen Barrier Red PEX tubing for heating and plumbing, 1 1/2" 250' Non Oxygen Barrier Red PEX tubing for heating and plumbing, Non-Barrier Insulated Pipe Multi-Line--NO TILE, Non-Oxygen Barrier Insulated Pipe Pre-Cut Lengths, Non-Oxygen Barrier Insulated Pipe 5 Wrap Multi-Line~~Pre-Cut Lengths, Oxygen Barrier Insulated Pipe Pre-Cut Lengths, Oxygen Barrier Insulated Pipe 5 Wrap Multi-Line~~ Pre-Cut Lengths, Pex-al-Pex Insulated Pipe Pre-Cut Lengths. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 3/4 x 500 ft PEX-A Red Tubing with Oxygen Barrier The standard for the oxygen diffusion barrier is DIN 4726, and must be listed directly on the pipe to ensure its use with such systems. Typically, red is used for hot water and blue is used for cold so that you can immediately see which line goes where when looking at a manifold. Select a country PEX-AL-PEX is frequently used in outdoor heating applications, warmboard systems and for high temperature systems like baseboard and fan coils. 0000067172 00000 n For radiant heat applications using closed systems, barrier tubing is by far the most popular choice. You will receive an e-mail with a new temporary password in it. 0000011964 00000 n Sign in to access your account and complete your order. Head Office1908-10215 95 Street NW, When designing Arguably the most important, but neglected, component of a steam system, the air vent, comes in many shapes and sizes. 0000024265 00000 n The biggest difference between the two is the oxygen barrier layer located on the, Both types of PEX pipe have many similarities as well. The average life span of PEX for plumbing purposes goes well over 50 years. Uponors hePEXrecently received NSF approval, making it one of the few types ofoxygen-barrier PEXon the market that can also handle domestic water. 0000030481 00000 n This extra layer in your tubing will assure that no oxygen gets into your heating system. Manufactured to SDR-9 Dimension standards; this can even be used with the F1960 expander-style (Uponor/Wirsbo) fittings as well as other popular PEX fitting systems (see list below). This feature prevents corrosion of cast iron components in the system (circulator pumps, air purgers, fill valves, boiler heating elements, etc.) (877) 235-6352 or [emailprotected]. 6Py\(ENhh= v k>2PHZH( Pf-kD&K/v(N9@#rvh^ I8-ZVV15lL ?G'jMY Most, Condensate Neutralizer Kits & Replacement Media, Kitchen, Bath & Shower, Fixtures, Toilets & Sinks, Modine Hot Water (Hydronic) & Steam Unit Heaters, Sioux Chief Prime Perfect Trap Primer Valves, Differences Between Oxygen Barrier And Non-Barrier PEX Tubing, Everhot NPB1201 1/2" x 100 ft PEX Plumbing Pipe, Non-Barrier (Blue), Everhot NPR1201 1/2" x 100 ft PEX Plumbing Pipe, Non-Barrier (Red), Everhot PXT3010 PEX Clamp (Cinch) Tool, Economy, Everhot PXT3016 PEX Tubing Cutter Tool, Ratchet Style. Non-barrier PEX Tubing is rarely seen in radiant heat systems, the few systems that do utilize non-barrier PEX are open systems. PEX-AL-PEX also has less expansion than standard PEX with the layer of aluminum assuring that it keeps its shape. 0000006024 00000 n 0000001804 00000 n OdVceZB%TAce U Now you can use extra hePEX tubing from a heating job on your next plumbing project or buy hePEX coils to meet all your PEX tubing needs. endstream endobj 68 0 obj <>>> endobj 69 0 obj >/PageTransformationMatrixList<0[1.0 0.0 0.0 1.0 0.0 0.0]>>/PageUIDList<0 23286>>/PageWidthList<0 612.0>>>>>>/Resources<>/Font<>/ProcSet[/PDF/Text]/Properties<>/XObject<>>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 70 0 obj [71 0 R] endobj 71 0 obj <>/Border[0 0 0]/H/N/Rect[142.709 557.566 205.268 545.356]/Subtype/Link/Type/Annot>> endobj 72 0 obj <> endobj 73 0 obj <> endobj 74 0 obj <> endobj 75 0 obj [92 0 R] endobj 76 0 obj <>stream 115 0 obj <>stream This layer normally makes the tubing unsafe for potable systems, but this is no longer the case with hePEX tubing. PEX piping is more durable than copper piping, and it is used in an innumerable number of applications, such as radiant heating systems for residential and industrial plumbing. Where traditional PEX is flexible, there is nothing that keeps it in place unless you tie it down every few feet. p{margin-bottom:.25cm;direction:ltr;color:#000;line-height:120%}p.western{font-family:"Times New Roman",serif;font-size:12pt}p.cjk{font-family:"Times New Roman",serif;font-size:12pt}p.ctl{font-family:"Times New Roman",serif;font-size:12pt}a:visited{color:purple}a.western:visited{}a.cjk:visited{}a.ctl:visited{}a:link{color:#00f}Shop the widest online variety of PEX, plumbing, heating, and HVAC supplies at Canarsee. Apollo PEX-B Oxygen Barrier Pipe has been designed to prevent diffusion of oxygen into hydronic radiant heating systems. gh4[Ct!-@"5,$gs>5Z VVVaf`amvXka9a9X282X2,ZXkb-X[k`m-%`m=r\cX;=kcX;=k K\;5"cFf dc%=k&['t" NtBDB':@'N:!diy\*=.U2m2I Ur'roS5Uu?pgN2?zMUvKH_0[#T]._fWi;+ 0 The dictionary defines a system as a group of interacting, interrelated, or interdependent elements forming a complex whole. 0000003434 00000 n The biggest difference between the two is the oxygen barrier layer located on the Oxygen Barrier tubing. Since oxygen from the air can penetrate PEX tubing (even when the PEX is embedded in a concrete slab), an oxygen barrier is needed in most heating systems. Non-Barrier PEX is used for a whole different assortment of applications. 0000003827 00000 n document.write(new Date().getFullYear()); First Supply LLC. Blue meaning cold, red meaning hot, white for neutral, and orange is typically used for PEX-Al-PEX tubing. hb`````f`c` 0000008712 00000 n 0000012591 00000 n 0000019351 00000 n Due to its oxygen barrier the tubing can be used for radiant floor heating, hydronic heating, and ice melting applications, where the Non-Barrier tubing would corrode. {{vm.session.shipTo.lastName}} {{vm.session.shipTo.firstName}}, Learn more about other website features and improvements with our convenient ProTip summaries|, {{vm.session.shipTo.address1 + " " + vm.session.shipTo.address2}}, Uponor helioPEX X2 Oxygen-Barrier PEX Pipe. Learn more about Email Subscription by visiting our FAQspage. If you think this is a mistake, please contact customer service at 1-888-757-4774 or via e-mail here. Sign up to receive timely updates and newest discounts. Pex Piping With Oxygen Barrier startxref Alpha PEX-A Tubing with Oxygen Barrier by PEX GUY can be used for radiant heating and potable water systems for both residential and commercial applications. Oxygen Barrier PEX pipe is good for hydronic radiant heating, cooling, and snow melting systems using water or water/glycol mix. The higher degree of crosslinking of PEX-A also offers greater durability in freeze/thaw cycles, keeping the integrity of the pipe intact. This material is rated for direct burial and poured concrete installations. trailer We carry everything for a residential project of any scale, at the lowest prices on the market. H\n0Fy PEX-A pipe also offers added freeze-resistance, compatibility with expansion-style fittings, and the opportunity to fix kinks by applying heat. 0 If you have problems accessing your account, please contact us at 1-888-757-4774 and we'll help you out. 0000012809 00000 n The difference is in the outside material of the tubing itself. I'm sorry, your e-mail was not found in our system. Current hePEX tubing carries cNSFus pw-rfh ASTM F876/877 and PEX 5006 ratings stamped on the tubing. PEX-A is manufactured using the Engel method which. This style of tubing will save you money when buying parts and will prevent rust and corrosion. 0000005880 00000 n Manufactured to SDR-9 Dimension standards; this can even be used with the F1960 expander-style (Uponor/Wirsbo) fittings as well as other popular PEX fitting systems (see list below). 0000111130 00000 n The reason for Non-Barrier is the fact that a constant supply of fresh water ensures that there will be oxygen molecules present in the system. 0000019216 00000 n Underneath the sub-floor (between floor joist) with or without heat plates, Engineered Floors / Modular Wood Engineered Floors, Staple up and/or Staple down installations, Direct Burial Indoor/Outdoor Wood Boilers, Compatible with: Uponor/Wirsbo Expander System, Crimp and Cinch Fittings systems, Push-Fit Fitting systems, NSF Certified for Radiant Heating (North America Certification), Manufactured to meet/exceed ASTM 876/877 standards, Pressure ratings: 79psi @ 200F, 100psi @ 180F, 160psi @ 73F by PPI, Expander Fitting Systems F1960 (Uponor/Wirsbo), Sharkbite Fitting and other similar systems, * Looking for different size or type of PEX piping? 0000000016 00000 n Canada 0000111156 00000 n Antifreeze can also break down a system with no oxygen barrier. 0000010266 00000 n 0000111710 00000 n Cross-linked Durel EPDM is extruded into a tube then wrapped wit PEX Tubing: Barrier vs Non-Barrier vs PEX-AL-PEX. Check out the PEX piping section in our store. Fresh oxygen causes ferrous metal components (cast iron circulator pumps, boilers, etc.) endstream endobj 78 0 obj <> endobj 79 0 obj [97 0 R] endobj 80 0 obj <>stream If you find a lower price than we advertise, call or email us with the information and we will beat the price. 0000109465 00000 n to rust in hydronic heating systems. 0000067211 00000 n Apollo PEX-B tubing is cross-linked, high density polyethylene and is available for potable water distribution systems in red, white and blue colors for easy identification of hot, cold and main water lines. bM,'vQj!gfC@ZD"yp%qE,n@W\Fz]l7}XC&$( FeDg/c[-:|k!w,K|v1vhGn]q &44dSn#nCHEoQVTR}y(|AMH:_ '|G~\p\ylye_]ZuUwWfVA+JCE7T 8YGFt,nD1#hkzf!hdt;\B}}$? We will beat product price + shipping cost when applicable. Non-barrier PEX for plumbing is available in red, white, and blue. Check out the. The world of plumbing has got the consumer always questioning one important detail, Oxygen Barrier or Non-Barrier. PEX tubing is an amazing alternative to other piping due to its easy installation capabilities, and therefore many do it yourselfers have taken on PEX projects in late years. You will have the option to create an account on the order confirmation page. Barrier, no barrier, aluminum, let's get them straight. 3H %w'|v];paTkp9uPoRo}:Y1v-*^-. The aluminum layer serves as the barrier in PEX-AL-PEX tubing, while a layer of ethylene vinyl alcohol (EVOH) is applied to the outer layer of standard oxygen-barrier PEX. This plays a major roll on the tubings ability to function without corroding ferrous materials in the system, and allows many other advantages that the Non-Barrier tubing does not have.

PEX with an oxygen barrier is designed for closed-loop space heating systems, and will normally be either red or white. For questions on our company or products, please contact us at (800) 346-9215. http://www.emersonswan.com/manufacturers-products/watts-radiant.html, Dielectric Nipples - Precision Plumbing Products. Your new password is on its way. 0000009484 00000 n 0000012660 00000 n Each type of tubing is intricately designed to fit the specifications of a certain type of application, and therefore has been built around these standards. * Looking for different size or type of PEX piping? Both Oxygen Barrier and Non-Barrier PEX can be purchased in these assortments of colors. Apollo PEX can be used in continuously recirculating plumbing systems up to 140F while maintaining chlorine resistance. 0000003578 00000 n 0000004589 00000 n The oxygen barrier layer also known as EVOH (Ethylene Vinyl Alcohol) is positioned in between the internal construction of the pipe, averting oxygen permeation. All three types of tubing are PEX (Poly Ethylene X-Linked) but some have extra features built in. Properly sized ventilation in airtight homes and apartments helps to assure healthy indoor air quality. 0000110618 00000 n endstream endobj 77 0 obj <>stream The "barrier" referred to in PEX tubing is actually an oxygen barrier. Raychem electrical pipe freeze protectio Utilizing advanced technologies, Brasscraft ProCoat yellow coating has been specifically engineered to withstand prolonged exposure to co What makes Onix perfect for radiant heat and snow melting applications? 0000003271 00000 n 0000103248 00000 n 0000023718 00000 n Vent Rite valves are Air is the enemy of a hydronic system. They are also extremely lightweight and flexible allowing for easy installation, as well as corrosion resistant. Only logged in customers who have purchased this product may leave a review.