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The MUELLER INDUSTRIES RP10143 is a 3/8 inch ACR Copper Press Coupling with Stop, designed for air conditioning applications. This coupling eliminates the need for brazing with heat or nitrogen, simplifying installation. It features a double O-ring setup for secure connections and is approved for use with Type ACR, L, and K hard and soft copper tubes. The coupling operates within a temperature range of -40°F to 250°F and handles up to 700 PSI pressure.
Designed for air conditioning work, this coupling offers reliable performance and simplifies installation by eliminating brazing.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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