Non-return valves fit in a pumps suction hose to aid priming and prevent backflow of water into the bilges. The valve comes with two hose connectors each end that require hose clips (see related products). This non-return is suited to 1.5″ hose.FeaturesSimply fit into suction hoseCorrosion-resistant materials throughoutAids pump priming, prevents backflow from pump into bilgeFits into pump suction lineRobust plastic construction with nitrile rubber valveAdjustable port configuration for convenient hose angleSpecificationsConnection ID bore hose: 1 1/2″ (38 mm)Length: 4 1/4″ (10.8 cm)Width: 2 1/8″ (5.5 cm)Height: 2″ (5 cm)Weight: 0.25 lb (0.1 kg)