• R & S #237W same as WHKF-C8 
• Food and Drinking Water Safe

O-Ring for Filtration Models: WHKF-DWH, DWHV, DUF
Rain Soft UF Series Reverse Osmosis Drinking Water System 12994 o-rings
Durometer 70A
Made In USA
Complete Return Policy
O-Ring problems: Send us your old O-Ring that worked and we will find you the proper O-Ring.