Home Slickdeals 20-Lb Flame King Empty Propane Cylinder w/ Type 1 Overfill Protection Device... Slickdeals 20-Lb Flame King Empty Propane Cylinder w/ Type 1 Overfill Protection Device Valve & Built-In Gauge $26 + Free Shipping By ARCOM - 15 February 2020 117 0 SHARE Facebook Twitter Go to the deal page: 20-Lb Flame King Empty Propane Cylinder w/ Type 1 Overfill Protection Device Valve & Built-In Gauge $26 + Free Shipping