Wetends shown are Complete with Seals and Empellers

Frames" refers to the size of your pump. All main spa pumps have either 48 or 56 frames. 48 frame pumps motors are 5.5" in diameter. 56 frame pump motors are typically 6.5" in diameter. You can also determine the frame size from the bolt spacing- the 48 frame is 3-5/8" and the 56 frame is 4-1/4."

The Vico Wetend Shown are for a 48 Frame

Click on the spa parts picture below for more information

Please note the Bolt pattern. If 5 bolts, then yours is a Ultra Max Vico 56 frame wetend and these will not fit.

I recommend the Waterway 56 frame wetend. Will fit with little adjustment.

To determine the size of the plumbing, measure from outside thread to outside thread.
If it measures 2 3/8 it is 1 1/2 inch.
If it measures approx 3 inches, it is 2 inch.