Lisle Heater Hose Disconnect Tool 3/4"

I would recommend this tool because of its durability and accurate sizing. Use instructions are vague but it does require a earning curve to use properly. In order to remove the quick hose couplers. You need to manipulate the fittings to break them loose. And use some Vaseline to lubricate the part and the protruding end of the tool to facilitate insertion into the fitting.