This o-ring fits inside the lip of the head or cap of the Australian made AEON filter housing.
It is recommended that a water based lubricant is applied to the o-ring every time you change the cartridges. 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: inside diameter 79.38 mm x 5.34 mm thickness