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COMBINED SHIPPING INSTRUCTIONS: Please do the following: add all items to your cart, select them, and click the "request total from seller" link. We'll send you an invoice with the lowest shipping rate available for your order. Don't worry: you won't be committed to the purchase, as transactions can always be canceled; this is simply the most straightforward way for us to calculate your combined shipping discount and apply it to your order.

These bulkhead fittings are molded from durable PVC plastic, with thermo-plastic elastomer (TPE) gaskets, and are compatible with most other PVC pipes, glues and fittings.

Hey, Amateurs! Please read this!

A bulkhead fitting is a pipe-to-tank adapter. The nominal size of a bulkhead fitting (i.e. the part of the product name that ends with "inch") refers to the size of pipe that the bulkhead will accept once it is installed into a tank. Similarly, the Thread/Slip designation refers to the inner channel of the bulkhead fitting where pipe is inserted.

There are many different styles of bulkhead fittings, with different wall thicknesses. But if it is called (for example) "1-Inch Slip x Slip" that means that a 1-inch pipe will slip into it. If it is called "3/4-Inch Slip x Thread," then a 3/4-inch pipe would slip into the flanged end, and a 3/4-inch pipe would screw into the shaft end. And so on.

But…but…what size hole do I need to make in my tank in order to install the bulkhead fitting?

Or…

But…but…there’s already a hole! What size bulkhead will fit into it?

We are so glad you asked! Please consult the following small chart which contains the holesaw sizes (i.e. bulkhead shaft outer diameters) for this line of bulkhead fittings! You're welcome!

PVC Bulkhead Fittings
Size	Diameter	Length	Recommended Hole Size (Fits into…)
1/2?	1.134?	1.5?	1-1/4?
3/4?	1.358?	1.81?	1-1/2?
1?	1.673?	2.27?	1-3/4?
1-1/2?	2.323?	2.52?	2-1/2?
2?	2.835?	2.52?	3?

WARNING: This product can expose you to one or more chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.