1PC 20 25 32 40 50mm UPVC Ball Check Valves Vertical Check Valve Exhaust Garden Irrigation Aquarium Adapter PVC Pipe Connector. Size: 20mm, 25mm, 32mm, 40mm, 50mm. PVC fittings have a healthy additive that inhibits the impact of sunlight and other ultraviolet sources on the molecular structure of the PVC.

1PC 20 25 32 40 50mm UPVC Ball Check Valves Vertical Check Valve Exhaust Garden Irrigation Aquarium Adapter PVC Pipe Connector. Size: 20mm, 25mm, 32mm, 40mm, 50mm. PVC fittings have a healthy additive that inhibits the impact of sunlight and other ultraviolet sources on the molecular structure of the PVC.