Left hand thread adaptor converts American gas threads, to the 5/8-18-LH (standard NZ & AU) gas thread. This will allow the use of standard 5/8-18 gas hoses.
Harris 886AL LH Gas Adaptor 9/16-5/8
Key Features
5/8-18 UNF Left Hand and Right Hand Gas Nut & Hose Tail Sets. Available in 5mm, 6mm, 8mm & 10mm
Replaced by Strata GR105 Twin Gauge Gas Regulators