These are preferred over ceramic as the ceramic absorbs the unwanted impurities and stainless steel helps with the refluxing action that removes these impurities more. Stainless steel saddles are also not porous so they last longer.
Ideal for adjusting the water flow for stills.An adapter is included so the unit should work on a 22mm and 24mm threaded faucet. This unit is a needle valve design which allows accurate adjustment of the water flow.