TruDesign Non-return valve

Back valve for connection directly to hose. 3/4" - Hose= 19mm Flow rate= 15-42L/min 4.0-11gpm 1" - Hose= 25mm Flow rate= 25-79L/min 6.5-21gpm 1 1/4" - Hose= 32mm Flow Rate= 32-117L/min 8.5-31gpm 1 1/2" - Hose= 38mm Flow Rate= 61-193L/min 16.0-51gpm 2" - Hose= 50mm Flow rate= 87-322L/min 23-85gpm