The Mixing Cartridge represents a new type of efficient energy-saving single-handled faucet. The mixing cartridge sets new standards with a diameter of 27mm and ease of operation. The easy operation and movement makes it possible to use small faucet handles and bodies for protecting environment. When the mixing cartridge is turn on, at first only cold water comes out. This avoids the problem of scald. It controls the cold water and hot water mixing process by spindle turning. At the maximum turning area, only hot water flows. The mixing cartridge always takes place via the original starting position for shut-off function. The mixing cartridge is available in the following turning ranges: 90o, 180 o and 240 o. The types are both of left turn closing version (LTC) and right turn closing version (RTC) for different requirement. Available Sizes: 27 MM Version: Right Turn Closing (RTC) /Left Turn Closing (LTC) Turning Range: 90o , 180o , 240o Material: Brass, Lead-Free Material, Stainless Steel, etc. Certificate: NSF-61/9, cUPC, WRAS, ACS , DVGW-KTW, WaterMark Passed Test: 500,000 times Life Cycle Test, Flow Rate Test, Burst Test (according to various standard such as ASME, CSA, CNS, EN200, EN817, JIS, etc.)