Keileoho Ro Tubing 1/4 Inch Outside Diameter, 328 Feet Food, Coffee Machine About Us Why Choose Our PE Tubing ? FOOD GRADE PE TUBING - The RO tubing is made of safe, non-toxic food grade PE material and does not contain BPA, so you can use it with confidence. A good PE pipe should not only have a good cost performance, but also have the advantages of stable and reliable interface, collision resistance, crack resistance, aging resistance, corrosion resistance, and so on, and our PE pipe meets these characteristics very well. STANDARD UNIVERSAL SIZE - Outside diameter of polyethylene tubing is 1/4 inch (6.35 mm), inside diameter is 0.158 inch (4 mm) and the wall thickness is 3/64 inch (1.2 mm), works with all kinds of quick connect fittings or most reverse osmosis, water filter systems, drinking water filters, liquid dispensers, coffee machine and so on. EASY INSTALLATION - Aquarium tubing is flexible and easy to cut. Make sure to pick up an RO tubing cutter for a perfect cut every time! Easy installation by hand with no tools needed. Connecting PE tubing to water filter systems you can get ultrapure water superior to ordinary filters. WIDE APPLICATIONS - Polyethylene tubing can be used with all standard and quick connect fittings. Polyethylene tubing offers excellent pressure and temperature ratings and has outstanding resistance to environmental stress cracking. Pex tubing 1/4 inch is also used in point of use drinking water systems, connection of RO drinking water filtration system, water purification systems, water softeners, refrigerator filters, ice machines, aquariums, and many other applications. WHOLE HEARTED SERVICE - We focus on product quality and value the shopping experience of our customers highly. Your satisfaction is our ultimate goal. If there is any quality problem with our 1/4 polyethylene tubing, you can return the product and get a refund within 30 days from receiving.