QCC1 Acme adapter (G.9) 1-5/16" right-hand to 27mm clip on gas bottles valves

QCC1 acme adapter to 27 mm clip on. Thread Standard: 1-5/16" right-hand external ACME thread Internal Thread: 0.880"-14 NGO-LH, also known as POL (Left-Hand) QCC Type 1 (G.9) refers to a standardized propane tank valve and connector (also known as QCC1 or LCC27) that features large external ACME threads. Safety Shutoff: The QCC1 fitting has a built-in thermal safety device. If a hose melts or ruptures during a fire, the valve limits the gas flow to a slow trickle (about 10% of maximum flow). Thermal Protection: If the temperature at the connection exceeds 240°F to 300°F (such as in a fire), the fitting automatically shuts off the gas supply completely.