Replacement O-Ring For Under Sink Filters & Whole House Filters - EXCEPT U24, U25 & BF7 - This is a universal pack with 4 different size O rings 3 black and one blue.
Price: $3.95
Qty:

Shipping Weight: 1.00 pounds

The K4 O-Ring will work on all Omni whole house and undersink water filters (Except U24, U25 & BF7). The pack has three black O rings and one blue O rings depending on what color you have on your filter system.