Plastic Tank Fittings

Plastic Tank Fittings PVC Plastic tank fittings are offered in a variety of sizes and styles. Bulkhead fittings are poly or stainless with a few options having a self aligning style center. Easy to install, these plastic tank fittings require a hole to be cut, insert the fitting and thread the nut on the outside of the tank. Rule of thumb is to hand tighten the fitting as much as possible and then use only a quarter turn with a wrench at that point. If you over tighten the fitting this can cause the gasket to crimp leading to possible leakage. 99.9% of the time a leaking fitting has been over tightened. Should this occur simply back off the nut and allow the gasket to reset before giving it another go.

Epdm and Santoprene are most common gaskets used on water tanks. We recommend upgrading to a Viton gasket if storing solvents or petroleum agents.
NameDiameterPart NumberPrice
1/4" Brass Bulkhead Fitting (Includes Viton O-Ring) 10897$8.99
1/2" Polypropylene Bulkhead Fitting (Includes EPDM Gasket) 10025$10.99
1/2" Norwesco Bulkhead Installed 62834$73.99
1 3/8" VitonRubber Gasket (Use with 1/2" Bulkhead Fittings) 12000$8.99
3/4" Heavy Duty Bulkhead Fitting (Includes Santoprene Gasket) 0.75" 10484$8.99
1 5/8" Viton Rubber Gasket (Use with 3/4", 1" Bulkhead Fittings) 12010$8.99
1" Bulkhead Fitting (Includes EPDM Gasket) 1" 10485$25.99
1-1/4" Bulkhead Fitting (Includes Santoprene Gasket) 1.25" 10918$26.95
2-1/4" Viton Rubber Gasket (Use with 1-1/4" Bulkhead Fittings) 12002$19.99
1-1/2" Bulkhead Fitting (Includes Santoprene Gasket) 1.5" 10507$19.99
2" Bulkhead Fitting (Includes Santoprene Gasket) 2" 10508$19.99
2" Stainless Steel Double Threaded Bulkhead Fitting 10486$196.99
2" Norwesco Bulkhead Fitting Installed 60405$76.99
2" Stainless Steel Heavy Duty Bulkhead for Tanks 3000 Gal 10490$194.99
3" Viton Rubber Gasket (Use with 1-1/2", 2" Bulkhead Fittings) 12003$26.99
3 1/4" Viton Rubber Gasket (Use with 2" Bulkhead Fittings) 12004$39.99
3" Stainless Steel Bolt-In Bulkhead Fitting 10011$276.99
3" Bolt-In Flanged Bulkhead Fitting (Full Drain) 10915$61.99
3" Bolt-in Fitting 10910$61.99
3" Stainless Steel Double Threaded Bulkhead Fitting 10487$304.99
3" Bulkhead Fitting (Includes Santoprene Gasket) 3" 12528$49.99
4 1/2" Viton Rubber Gasket (Use with 3" Bulkhead Fittings) 12005$49.99
4" Stainless Steel Bolt-In Bulkhead Fitting 11099$321.99
4" 316 Stainless Steel 8 Bolt Double Threaded Bolted Fitting Less Gasket 63688$209.99
4" Norwesco Bulkhead Fitting Installed 62171$129.99

Plastic Tank Fittings Installation Guidelines