Hydronic Hot Water Closed-Loop Treatment.
PRO-TEK® 922 is a concentrated organic corrosion inhibitor treatment specially formulated for closed loop heating and cooling systems. Many water sources used in hydronic systems can be very corrosive to metals. PRO-TEK® 922 will help to reduce corrosion on aluminum, brass, copper, iron, and stainless steel. PRO-TEK® 922 has also been tested and is compatible with standard PEX and Onix tubing typically used in hydronic installations.