The AXEON SS–Series 4040 304 Stainless Steel Membrane Housings are for durable, long–term use in typical commercial reverse osmosis, nanofiltration and ultrafiltration water treatment systems at pressures up to 250 psi. AXEON SS–Series Membrane Housings are seamless and accommodate all standard size membrane elements and feature a True–Clamp™ Integrated Clamping System for added security. Note: All stainless steel membrane housings come with c-clamps, end plugs, hardware, and rubber saddles, but do not include the mounting straps.