Unions and Collars - Southwest Spas - SoftSpa

Specifically to pump unions for your information a 2" Pump union is the most common in the marketplace. Be aware the 2" dimension does not relate to any measurement of the union.

To help in identifying your pump union the outside diameters are approximately:

1" union = 2-2/8" - 57mm
1-1/2" union = 2-13/16" - 71mm
2" union = 3-3/8" - 81mm
2-1/2" union = 4-1/4" - 105mm

Filter By
Need Help?