The MRCOOL MLP1PSA Signature Series Propane Conversion Kit is designed to convert compatible single-stage 81% AFUE Signature Series air conditioner and gas package units from natural gas to liquid propane. It works by replacing and adjusting key gas-system components to support proper propane flow and combustion, helping the equipment operate safely and consistently. https://www.partshnc.com/mrcool-signature-series-propane-conversion-kit-mlp1psa