Plug insulation 1" -2x- (2 ps) De Dietrich 7883528

This set of two plug insulation pieces, each with a 1-inch size, is designed to seal and insulate openings in boiler systems. These plugs help maintain thermal efficiency by preventing heat escape and blocking contaminants. Ideal for use in various heating equipment components, they are made from durable, heat-resistant material. Whether you are performing maintenance or repairing a boiler, these insulation plugs provide a simple and effective way to improve energy savings and system reliability. A handy spare part for any technician or homeowner.