SAFE BOILER STOP LEAK 1 Quart Safe Boiler Stop Leak – Stops Leaks In All Steel And Cast Iron Boilers – For Both Steam Boilers And Hot Water Systems Including Baseboards, Copper Lines And Radiant Heat Systems – Safe For Use In All Boilers – Use 1 Quart For Every 650′ Of Radiation For Steam Boilers; Use 1 Quart For Each 400′ Of Radiation For Hot Water Systems – Mfg #SL-24
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