Blue H2O Filtration

Double open-ended (DOE) cartridges usually employ a knife-edge mechanism on both ends of the cartridge with compression to create a seal. They are commonly used for non-critical, general purpose filtration and pre-filtration.

Code 2 style incorporates 2 x 226 ‘O’ rings and bayonet, with a flat blanking cap at the the cartidge’s closed end.

Code 3 utilises 2 x 222 ‘O’ rings at the open end and a flat blanking cap at the closed end. Common in industrial and pure water applications.

Code 6 has 2 x 020 ‘O’ rings located on a spigot in the housing. The recessed closed cap at the other end allows the cartridge to be centralised in the housing.

Code 7 uses 2 x 226 ‘O’ rings and a double bayonet, with a spear on the closed end. This is the standard configuration for many critical pharmaceutical and beverage processes.

Code 8 has the same ‘O’ rings as Code 3, but with a spear (bomb-fin) at the closed end.

Code 9 style has a single 213 internal ‘O’ ring, and the same recessed closed cap as Code 6.

Code A has a double ‘O’ ring at the open end and a spear at the closed end. Typically used for critical applications.

Code B uses a double ‘O’ ring at the open end and a flat blanking cap at the closed end. Common configuration for industrial applications.

Code S combines 2 x 222 ‘O’ rings with a 3 lug bayonet, and has a spear at the closed end.

Code E – FFC Double O ring with closed lifting end lifting handle. (39″ length only, 740 alternative)

Code F – FFC Single O ring with closed end lifting handle. (40″ & 60″ only, HiFlow alternative)

Code G – FFC Single O Ring on extended spigot with closed end lifting handle.

Code H – FFC Single O ring with closed end lifting rod. (27 & 6601 Series only, Amazon code)

Code P – FFC Single O ring with closed end lifting handle. (66 Series multi housing only, Amazon code)

Code C – HFC Single O ring with closed end. (HFC only, HFU alternative)