This o-ring fits inside the Shower filter housing (2 required per housing). It is recommended that a water based lubricant is applied to the o’rings every time you change the cartridge.
They should be changed every 2 – 3 years or when they start to flatten out or lose shape.
N.B. O-ring is sold individually not in pairs
Dimensions: 60mm L x 60 mm W x 2 mm H