Outdoor Wood Boiler Chemical Treatment - 1/2 Gallon - Treats 125 to 250 Gallons of Water

Boiler Rust Inhibitor - Treats 125 to 250 Gallons of Water Stops boiler rust. Ideal for outdoor boilers and most closed loop boiler systems. Compatible with Iron, SSTL, Copper, Bronze, and PEX. Contains a P indicator for product ease and leak detection.