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"If there be any among us who [disagree], let them stand undisturbed as monuments of the safety with which error of opinion may be tolerated, where reason is left free to combat it." Thomas Jefferson, March 4, 1801
NOTE: ABS bulkheads are near the top of the page and PVC bulkheads are below them. If you are gluing PVC pipe into the fittings, it's best to go with the PVC fittings. Bulkhead fittings come with one gasket. If you need extra gaskets see our Bulkhead Fittings and parts page.
Economy Bulkhead Fittings Hole Sizes
1/2" bulkhead fittings take 1-1/8" to 1-1/4" hole
3/4" bulkhead fittings take 1-3/8" to 1-1/2" hole
1" bulkhead fittings take 1-3/4" to 2" hole
1-1/2" bulkhead fittings take 2-3/8" to 2-3/4" hole
2" bulkhead fittings take 3" to 3-1/4" hole
1/2" ABS Bulkhead with 1/2" FPT (female national pipe threads) on the flange side and slip socket on the back of the bulkhead fitting (aka tank adapter). Comes with one gasket and one nut. Extra nuts and gaskets available on the bulkhead fittings parts page. Hole size is 1.125 to 1.25". Flange diameter is 1.73". Wall thickness is up to 1". Made in the USA.