Karmat 110-200mm Polypropylene Check Non-Return Valve Backwater Prevented - Check Valve

SENRISE Brass ML-8201 DN32 Check Foot Valve with Strainer Filter and Non-Return Function

SagaSave Foot Valve 1" BSP Brass Check Valve Spring Non Return Check Valve Pump Inlet Filter Strainer with 1" 22mm Hosetail for Pump (1PCS)

WilTec Brass Foot Valve 3/4" (26,16mm) Check Valve NON Return with stainless strainer f.pump

PLUMBING4HOME PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 110mm

PLUMBING4HOME PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm

IVEKYKIBC 10pcs Pneumatic Air Check Valve Non-Return Valve Hose Pipe Quick Connector SPU SPV SPM 4 6 8 10 12MM Straight Bulkhead(Spu-6)