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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
VERY IMPORTANT: READ EVERYTHING ON THIS PAGE BEFORE CLICKING. We carry more bulkhead (aka tank adapter) fittings than anyone on the net. It can become confusing, so take your time to review every page we have listed below. Bulkhead fittings are identified by the size of the pipe it connects to, not the hole size. (There is an exception to this. Our new Quick Disconnect (QD) 150PSI Modular Bulkhead System) When we describe the bulkhead fitting, the first designation is the flange side and the second is the back side. ie, fpt (female npt)x slip means the flange side has a female pipe thread and the back side would have a slip socket for pipe to be glue into. Again, size always represents the pipe size that fits the bulkhead fitting (aka tank adapter), not the hole size. With that said, if you click on one of the links below, it should give you the hole size for each bulkhead fitting (aka tank adapter) in the description for the item. If you don't find the size bulkhead fitting you want in one category, look in some of the others. All bulkhead fittings come with at least one gasket and one nut unless stated otherwise in the description. Extra nuts and gaskets are available at the link near the bottom of this list.
Economy Bulkhead fittings 1/2" to 2" - These are all ABS and available in 4 different configurations: Slip x slip, slip x fpt, fpt (female npt)x slip and fpt (female npt) x fpt. Sizes available are 1/2", 3/4", 1" 1.5" and 2". All are black in color.
Sch. 80 bulkhead (aka tank adapter) fittings - These are all potable water rated, schedule 80 fittings. Sizes available are 1/4", 3/8", 1/2", 3/4", 1", 1.25", 1.5", 2", 2.5", 3", 4", 6" and 8". (Special order on some sizes, if you click on this link and don't see the size you need, email us for details) All gray in color, made of PVC.
Quick Disconnect (QD) 150PSI Modular Bulkhead Fittings & Support Parts. These bulkheads fit 1" and 1.25" holes in materials up to .0625" (1/16") thick. For use with 1/2", 3/4", and 1" tubing or hose or 3/4", 1", and 1.25" PVC (flex or rigid.) These bulkhead fittings use an o-ring for the seal in most cases. Very high end stuff. Very good looking products. If you are using 1/2", 3/4" or 1" hose and want the job to have that super professional industrial look, these are the fittings for you.
Standard Medium and Heavy Duty Bulkhead fittingsThese are our original line of bulkhead (aka tank adapter) fittings. Most ABS, a few PVC. Non-rated fittings. Sizes include 1/2", 3/4", 1", 1.5", 2" and 3", some having several different styles of each size. Many odd-ball and one of a kind bulkhead fittings here. Some in black and some in white.
Bulkhead Fittings Garden Hose. Bulkhead for use with the common garden hose ends. All fit 3/4" Garden Hose Thread, offered in several different styles.
Screens for bulkhead (aka tank adapter) fittings: Grates, Flat and Vertical Screens for bulkhead fittings. Again, take special care here, not every part here fits all the different bulkhead (aka tank adapter) fittings we sell. Email if you have questions.
Custom Made Extra Long Bulkhead Fittings The pipe sizes will be the same as above fittings, just you can order longer lengths for very thick walls or bulkheads.