Commercial Industrial Supply offers the lowest prices of any PVC supplier. Now in stock - these Schedule 80 PVC Bulkhead Fittings. All sizes, including this 1" PVC Tank Adapter with Viton gasket. Ends are socket x fipt. , Size: 1" , Material: PVC, Gasket: Viton, End Type: Socket x Fipt, Max Pressure: 150 psi