The Nibco Press System fittings are designed to join with ASTM B 88 seamless copper water tube in residential and commercial potable, hot, chilled and process water applications for plumbing and HVAC systems. Copper and copper alloy materials and EPDM elastomeric seals have a long history of compatibility with common chemicals used in these systems. A chemical resistance chart should always be referenced when other fluids are to be introduced. <br /> No Flame <br /> Watertight seal <br /> Easy to install <br /> Consistent &amp; reliable connections <br /> Faster installation <br /> Installs wet or dry <br /> Enviromentally clean <br /> Safe installation <br /> -20?F to 250?F up to 200 PSIG, non-shock working pressure <br />