Throughout our catalog you will notice that all the plumbing parts as well as pump parts and other items are referred to as 1/2", 3/4", 1", 1-1/2" or 2". Yet when you measure "across" the fitting you don't come up with any one of these measurements. It can get confusing. So Instead of trying to explain why, we have put together a list of our most common items sold and listed there "spoken" measurements as well as how they really measure up.

Wet ends; also referred to as pumps, is the plastic molded housing that is mounted at the end of the motor. It has two port connections, one being the suction and the other being the return, which can be rotated 360 degrees. Both these ports have plumbing attached to them via connection of a union or quick disconnect. Pump/ Wet Ends come in various styles and shapes, they are sold as 1-1/2", 2" or 2-1/2". The 2-1/2" measurement is typically found on the suction side only.

If you would like to know how to disassemble a pump/wet end click here.

These nuts are typically found at the end of the stainless heater manifolds, however they can be found connected to the pump/ wet end as well.