2" MBT to 2.5" MBT pump union adapter

This pump union adapter is used to convert the union thread on a pump to a different size of union thread.

This adapter allows you to screw a 2.5-inch pump union onto a 2-inch MBT pump thread. In other words, it allows you to effectively increase the size of the male thread on your pump from 78 mm to 94 mm.

If you don't already have them, you may also need to purchase a 2-inch o-ring for the pump side, and a 2.5-inch o-ring for the union side.

Dimensions
Inside diameter of the female thread: 75 mm or
Outside diameter of the male thread on the pump: 78 mm
Outside diameter of the male thread on the adapter: 94 mm

Part numbers
Waterway: 415-6010