Boiler Rust Inhibitor - Wood Boiler Chemical - 1 Gallon - Treats 250 to 500 gallons of Fresh Water

Very good at preventing rust on my outdoor wood heated boiler.

I like that we paid less than half what our dealer sales it for. If you have an outdoor wood stove this is a must have.You test your water every year, by sending a sample to the company and the company that produces your stove lets you know when you must add more chemical.This keeps your 12,000-dollar stove from rusting from the water it needs to operate. So glad we found this on Amazon. Will definitely buy more when we need it. High quality chemical and yes it turned pink. Great value and I highly recommend.

Works Okay. ?

put this in our outdoor wood furnaces, it turns the water a bit purple so you can see when to add more or at least test the water and is half the cost of the product we bought from the boiler company

I have a 9 year old outdoor wood boiler. I've been using this product for a few years with the convenience of ordering from Amazon. I drain and flush the system every couple years and begin by adding about 1/2 gallon of treatment to the system. Every year, I add another 1/2 gallon or so to the system when I top off the water level. I seem to get much less rust and corrosion coloring when I drain and flush the system.

It may keep rust away but seems to lose it's strength quickly according to the quick loss of color after adding it to my wood boiler

Very pleased with purchase but found product in the ditch across the road from our address. Sure don't like FedEx anymore!

Fast shipment. Seller is great. The product does what it is supposed to.