Filtamate Pressure Limiting Valves - 60 PSI; 3/8 QC FMP60PSI-3/8. Inline Presure Regulator prevent damage from water hammer. APEX Filtamate FMPSeriesWater Pressure Regulators (aka Pressure Reducing Valve or Pressure LimitingValve) Filtamate Pressure Limiting Valves Features: Protects water filter units by limiting water pressure Reduces water hammer Acetyl body with John Guest speedfit connections for 1/4 tube Dual checks prevent backflow making the valve ideal for reverse osmosis units fridges with ice makers and coffee machines. FMP 50 valves are designed for water filters ice makers coffee & espresso machines FMP 85 valves are designed for Reverse Osmosis Systems FMP60PSI Pressure Regulator Required with all Hot Tanks & Chillers. Pressure Regulators filamate apex apx regulator FMP85PSI FMP50PSI