Flame King Overfill Protection Valve helps prevent the 3LB propane tank overfills by closing when propane liquid level reaches to an 80% fill rate. The Float Gauge measures the level of propane inside the tank - it moves up and down with the liquid propane level. The gauge dial on the outside of the tank (sold separately) then displays the approximate percentage of propane remaining. Made of high quality premium materials for your safety - UL Listed.
IMPORTANT: The purchaser of this product assumes all responsibility and liability to ensure that it is the proper part for the application and complies with all National, Regional, Province or local codes, regulations and standards, including, but not limited to the applicable requirements of CGA, NFPA, CFR 49 and Transport Canada.