This is Permanganate only. To be used with water test kits p/n 405 and p/n 597.
Complete kits include pH test strips. It's a good idea to check your water at least 3 times a year. The water in your outdoor wood furnace/boiler is the lifeblood of the system. If left unchecked, untreated water can clog expensive heat exchangers and corrode the boiler from the inside out.
ATTENTION: This product has a life of 2-3 years, after which it will not react properly
Be sure to pickup some XL1650 Corrosion Inhibitor (p/n 1650).
*This product cannot be sent through US Mail and must be shipped UPS.