NG and LP Gas Universal Pressure Regulator for Majestic Gas Fireplaces models UVHK23MP, UVHK29MN, UVHK31MP, and UVHK36MN and may be compatible with other models and manufacturers

Measurements: 1/2" x 1/2" Preset to: Natural Gas 4.0" W.C. and for LP Gas 10.0" W.C.