12" x 16" x 1" Elliptical Blue Max Manhole Gasket - 2 Pack

Blue Max boiler gaskets are made from a special formula glass/elastomer-impregnated tacky cloth. The gaskets have their sizes clearly marked for easy installation. These super-strong gaskets resist splitting due to over-tightening flange surfaces. Key Benefits: Zero Leakage Under Pressure: Even the slightest leakage is too much, as it increases maintenance and reduces boiler life. Tests by major boiler manufacturers confirm that Blue-Max gaskets seal- with zero leakage-on steam to 450 psi and on cold-water hydro tests up to 1500 psi and Blue-Max gaskets withstand working temperatures up to 500 degrees Fahrenheit. Rubber gaskets simply can‚ withstand that kind of pressure and heat. Easily Removed: Removal is easy and requires no scraping, chiseling or grinding. This is important in reducing the maintenance costs and down time. Sizes Clearly Marked : Each Blue-Max gasket is permanently marked with its size, so you‚ know immediately you have the appropriate one. Easy Problem Free Installa