KleenWater Replacement O-Rings for KW2520SCALEX System, Set of 6

KleenWater Replacement O-Rings for KW2520SCALEX System, Set of 6 Set of 6 o-rings compatible with the KleenWater KW2520SCALEX hot water filtration system KW2520SCALEX hot water filtration system Change o-ring every 12 months for proper maintenance Made of Buna N nitrile rubber It is recommended to change the o-ring annually and to have a spare available to avoid an urgent situation. An o-ring facilitates a water tight seal between the water filter sump and the water filter head. The most common o-rings used in water filtration are made from Buna N material. Buna N is also commonly referred to as nitrile. This is the ideal choice for cold water filtration because they are inexpensive and have superior performance characteristics.