and washers

The duct is totally non-combustible with a maximum operating temperature of 400°F

The extended coupling has press connections without a tube stop

under granaries

tubs and shower drains

1-1/2"CP PRESFIT TEE-PxPxP PC611/WROT/PRESS FIT FITTING WATER HEATER CONNECTER-COPPER and washersNIBCO Press System fittings are the fastest, easiest way to join copper tubing systems in residential and commercial potable, hot, chilled and process water applications for plumbing and HVAC systems. The press fittings can also be installed underground. The NIBCO Press System is user friendly, quick and easy to install. When properly crimped a unique "N" witness mark is clearly visible. Please refer to NIBCO technical data sheets and catalogs for