Universal Square Flange And Matching 3" Key- For Fireplaces And Firepits - Flat Black Finish - Use Bushing For 1/2" Valves And Remove Bushing For 3/4" Valves. Bushing Adds An Additional 3.5" For Installation Of Globe Valves - Replace Outdated Chrome/Brass Floorplates To Enhance The Appearance Of The Hearth And Firepits. Universal Square Flange And 3"Matching Key Black Finish -Unique Design Includes Bushing To Fit Either 1/2" Or 3/4" Valves. Bushing Adds An Additional 3.5" For Installation - Contemporary Designs