Save when you order your Schedule 80 Bulkhead Fittings from CIS. We offer low prices on all sizes, like this 4" PVC Tank Adapter with Viton gasket. Ends are socket x fipt. Call today for a quote or any other questions! , Size: 4" , Material: PVC, Gasket: Viton, End Type: Socket x Fipt, Max Pressure: 150 psi