Material: Made of food grade plastic material, it's it has good wear resistance, sturdiness and durability, smooth surface and exquisite workmanship, and its high-quality materials can be used for a long time and also can be used repeatedly Easy to install: Our push fit technology makes installation a breeze! No need for complicated tools or messy adhesives - simply push the fitting into place for a secure, leak-free connection Application: Our water pipe fittings can be used in a variety of plumbing applications, Reverse Osmosis Water System and Housing In Line Filters ETC, from connecting your fridge to your water supply to fitting pipes in your home Sizes: Tube O.D.:1/4"(6.5 mm). Female Thread Size:1/2PT( 19.5±0.3 mm). The head of the push fit connector has a blue buckle, its function is to better to fix the water pipe, so that the water pipe will not fall off easily Package: ​Comes with 5pcs per set, very practical water filter RO system fitting. Please checking the product size before purchasing, Weight: 0.0992080179 Pounds, Manufacturer: Pxyelec