The ceramic of a filter candle is cast
in such a way that it has one domed closed end. The other end of the
ceramic is open. This open end is closed off with a food grade plastic
mount, which enables the candle to fit into a filter housing. Water
passes from the outside of the candle to the inside, leaving particles
of dirt, bacteria, etc. on the outside of the ceramic. The filtered
water then passes out of the candle through the mount.
There are 2 standard types of mount
(long and short). The length of mount required is determined by the type
of housing into which it is to be fitted. The short mount is for undersink/countertop systems and the long mount is used in portable/gravity systems.
Both long and short terminate in a ¼ inch BSP male thread.
All FICL candles are available in two standard lengths:
7 inches (178mm) or 10 inches (254mm)