Milton 1/2" Female Coupler G-Style NPT 1/2” BOWES MIL 1815.• G-Style coupler bodies are steel, plated to resist rust • Maximum temperature: 250° F • G-Style plugs are case hardened steel, plated to resist rust • Air fl ow: 99 SCFM • Maximum inlet pressure: 300 PSI • Seals: Buna-N