Looking for a DI filter cartridge for 4×40" housings?

This is it.

These one-time-use DI filter cartridges fit the 4×40" housings from many manufacturers.

Filled with our virgin resin, these filters will remove all of the impurities in your water to make spot-free water.

This is NOT the replacement DI cartridge for the 4060 system. The correct replacement DI filter for the 4060 is the 4 X 30" FILTER CARTRIDGE – DI RESIN