Home Slickdeals Costco Members: Firman 3200W Gas/Propane Powered Inverter Generator $600 + Free Shipping Slickdeals Costco Members: Firman 3200W Gas/Propane Powered Inverter Generator $600 + Free Shipping By ARCOM - 1 August 2020 123 0 SHARE Facebook Twitter Go to the deal page: Costco Members: Firman 3200W Gas/Propane Powered Inverter Generator $600 + Free Shipping