ProTech 300 Wood Boiler Water Treatment is an inexpensive alternative to brand-name boiler treatment chemicals at half the cost. Our ProTech 300 Boiler Treatment will Protect your indoor and outdoor wood boiler from rust, corrosion, and scale, Balance pH and Alkalinity. The ProTech 300 Outside Wood Boiler treatment meets or exceeds all boiler manufacturer nitrite warranty requirements. Don't pay a premium just for a brand name. One gallon of ProTech 300 Boiler Treatment will treat 300 gallons of fill water and maintain a 1000ppm nitrite level. Important Note: Like any other boiler treatment chemical, you must dose your treatment based on the needs of your system. You can determine the needs of your system by testing your wood boiler water using one of our ProTech 300 do it yourself Wood Boiler Water Test Kits. The manufacturers can't tell if you used their expensive brand or ProTech 300 - so why pay more?! Shaver Wood Furnace recommends this product only!