3" x 4" x 1/2" x 1/4" Elliptical Spiral Max Handhole Gasket BaseSKU-MTP1C which offers three fan speeds

which offers three fan speeds (Low

it opens out to relieve positive vent system pressures as low as

The Field RC is furnished as standard equipment on many leading brands of oil or coal-fired heating equipment

Cast iron heat exchanger: Meets the ASME Boiler and Pressure Vessel Code

3" x 4" x 1/2" x 1/4" Elliptical Spiral Max Handhole Gasket BaseSKU-MTP1C which offers three fan speedsSpiral Max gaskets can be made from a wide variety of profiled alloy containment strips combined with specified sealing composites. Following ASME B16. 20 code, the strips are wound around a mandrel specific to the finished gaskets internal dimensions. The gasket, inside diameter contains, at a minimum, three plies of preformed metal strip without the sealing composite and is spot welded at least three times at a distance no greater than 3, apart