The double under-sink housing KS 550 allows for a variety of effective filter combinations and can reliably and specifically address complex water issues in households, businesses, and public facilities. The filter housings are made of food-grade stainless steel and are characterized by durability, excellent cleanliness, and stability. Unlike plastic housings, the stainless steel housings remain completely leak-proof even after many filter changes. No plasticizers are released into the water. Installation is done under the sink, directly at the T-valve on the cold water line. For the best drinking water enjoyment, choose the appropriate water filters and a drinking water faucet from our range. It comes with a solid stainless steel suspension. The housing is secured by an over-screwing mechanism. We do not provide any warranty for improper use, such as the tightness of our products during self-installation or installation by your contracted professionals. This also applies to the use of filter cartridges from other manufacturers. Please note that the pH value of the incoming water must be at least 6.8 for the stainless steel filter.