The Omnipure (Q5562) is a all NRW-37 DI Mixed Bed water filter. This filter features the optional Twist Tap in-head valve system, which automatically turns the supply water off when the body is disconnected from the head. This filter can be used in ice makers, refrigerators, beverage equipment, drinking fountains, under the sink systems, and reverse osmosis systems. This filter aids in the removal of salt and TDS (Total Dissolved Solids) from your water. Omnipure Q5562 Q-Series Water Filter Specs: Dimensions: 2.5" W X 10" L Flow Rate: .5 GPM Maximum Pressure: 125 PSIG Maximum Temperature: 100 F Service Life: 220 grains of hardness Filtration Media: Purolite NRW-37 Nuclear Grade High Purity Mixed Bed Resin Fitting Size: This Q-Series filter is a replacement filter and must be used with an existing Q-Series head. The Q-Series heads are available in 1/4" Quick-Connect fittings, 1/4" NPT female threads, or 3/8" NPT female threads. Additional Details ------------------------------ Product description: The Omnipure (Q5562) is a all NRW-37 DI Mixed Bed water filter. This filter features the optional Twist Tap in-head valve system, which automatically turns the supply water off when the body is disconnected from the head. This filter can be used in ice makers, refrigerators, beverage equipment, drinking fountains, under the sink systems, and reverse osmosis systems. This filter aids in the removal of salt and TDS (Total Dissolved Solids) from your water. Omnipure Q5562 Q-Series Water Filter Specs: Dimensions: 2.5" W X 10" L Flow Rate: .5 GPM Maximum Pressure: 125 PSIG Maximum Temperature: 100 F Service Life: 220 grains of hardness Filtration Media: Purolite NRW-37 Nuclear Grade High Purity Mixed Bed Resin Fitting Size: This Q-Series filter is a replacement filter and must be used with an existing Q-Series head. The Q-Series heads are available in 1/4" Quick-Connect fittings, 1/4" NPT female threads, or 3/8" NPT female threads.