The Waterpik 274300 Compression Seal, O-ring is the replacement o-ring for Teledyne Waterpik housings IF-2, IF2, IF-20, IF20, IF-20a, IF20a, IF-10, IF10, IF-10a, IF10a, IF-70, IF70, IF70E, IF-70E, IF100, IF-100, IF100A, IF-100A, K50, K-50, and Instapure housing IF-20 and IF-20A.
This Waterpik O-ring makes a perfect seal in these housings and prevents leaks.