PuroTech™ Stainless Steel Membrane Housings have a smooth and sleek look and are offered in both side and end entry styles. Stainless steel is not affected by ultraviolet rays and is lighter and more durable than FRP housings. Equivalent in operating pressure ratings to FRP housings (300psi), PuroTech™ housings will not warp, crack or weep. PuroTech& housings are a perfect fit for all male style membrane elements. Housings are sold complete with end plugs, end clamps and o-rings. PuroTech 4" diameter SS Membrane Housings accommodate any make of 4-inch nominal diameter spiral wound elements with a 3/4" diameter male product tube. Membrane interconnectors are sold separately.