The Rankin Delux RDLR-06C Pressure Regulator 3/4" Nat, 3"-6" WC, 1/2 PSI ensures stable and accurate natural gas pressure for dependable appliance performance. It functions by reducing the higher incoming gas pressure and regulating it within a controlled 3"–6" water column range, providing a consistent flow to burners and other gas-powered components. The 3/4" connection enables stra... https://www.partsfe.co.uk/rankin-delux-rdlr-06c-pressure-regulator-3-4-nat