The housing of the reverse osmosis membrane has one water inlet and two outlets. One outlet directs the water to the osmosis tank for storage, and the other outlet directs the water to the kitchen drain. It is essential that the housing is made of high-quality materials as it withstands various pressures.

The housing can accommodate membranes producing up to 200 GPD. The replacement of the housing depends on the quality of the water and the pre-filters. It connects with a 1/4" tubing.