Check the listing for details. Mueller Streamline® RP10144 1/2" ACR Copper Press Coupling with Stop. Condition: New. Listed at 12.50 USD. Mueller Streamline® RP10144 1/2" ACR Copper Press Coupling with Stop Streamline® is the best known, most trusted name in the industry—with a nearly 100-year history of providing the best-in-class products you need to work more efficiently and productively. The ACR Press System is the latest example of the industry-leading innovation and commitment to customer needs that make Streamline® the standard for excellence. Broad offering of fitting types for today’s HVACR applications Available in diameters ranging from 1/4″ to 1-3/8″ OD Industry’s only press fitting with T.R.A.P. Technology, featuring DualSeal™ Ring Design Similar patterns and lay lengths as traditional braze copper fittings Compatible with R410A and other commonly used refrigerant gases and oils Proprietary jaws readily available from Milwaukee® Tool Jaws compatible with leading full-size press tools on the market 10 Year Limited Warranty Operating Perameters Continuous Operating Pressure: 700 PSI / 48 BAR Max Continuous Operating Temp: -40°F / -40°C to 250°F / 121°C Sealing Ring Temp Rating: -40°F / -40°C to 300°F / 149°C Approved Applications Air Conditioning Heat Pump VRF and VRV Light Commercial Refrigeration Non-Potable Water Ethylene Glycol Approved Refrigerants R-125, R-134a, R-32, R-404A, R-407A, R-407C, R-407F, R-407H, R-410A, R-417A, R-421A, R-422B, R-422D, R-427A, R-438A, R-444A, R-447A, R-447B, R-448A, R-449A, R-450A, R-452A, R-452B, R-452C, R-454A, R-454B, R-454C, R-457A, R-459A, R-507A, R-513A, R-513B, R-718, R-1234ze, R-1234yf, R-290, R-600A Specifications Weight: 0.09lb Material: Copper Operating Temperature (Min.): -40°F Operating Temperature (Max.) 250°F End Type: ACR Press End Size: 1/2 in Second End Type: ACR Press Second End Size: 1/2 in Overall Length: 2.28 in Overall Height: 0.79 in Overall Width: 0.79 in