Specification Brand : Boiler Supplies.com BulletPoint1 : Zero Leakage Under Pressure: 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 withstand working temperatures up to 500℉ BulletPoint2 : Easily Removed: Removal is easy and requires no scraping, chiseling or grinding. BulletPoint3 : Sizes Clearly Marked: Each Blue-Max gasket is permanently marked with its size. BulletPoint4 : Easy Problem Free Installation: The gasket naturally lays flat on the flange and requires no special installation tools, procedures or training. BulletPoint5 : Chemical Resistant: The proprietary Teflon wrap is resistant to the chemicals used in treating boiler water, so gaskets will last longer. BulletPoint6 : Extended Shelf Life: A Blue-Max Gasket won't dry out or lose its strength while in sits on the shelf. BulletPoint7 : GASKETS ARE 1/4" NOMINAL THICKNESS Color : Dark Gray ExteriorFinish : Plastic ExternallyAssignedProductIdentifier1 : 193005446604 ExternallyAssignedProductIdentifier2 : 0193005446604 ItemName : Blue-MAX Elliptical Manhole Gasket | Boiler Manhole Gasket (1 Pack) (16" x 18" x 1-1/4" Flange) ItemPackageDimensions_Height : 15.7 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 12.2 centimeters ItemPackageQuantity : 1 ItemShape : Elliptical ItemTypeKeyword : sheet-gaskets LowerTemperatureRating : -100 degrees_fahrenheit Manufacturer : Boiler Supplies Material : Rubber Wrapped in Teflon Tape ModelNumber : BULK-FG-4968 NumberOfItems : 1 NumberOfPieces : 20 PackageLevel : unit PartNumber : Blue Max Gaskets Pressure : 450 pounds_per_square_inch ProductDescription : Maintain the efficiency and safety of your boiler system with the Blue-Max Handhole Gaskets, designed specifically for high-temperature and high-pressure applications. These gaskets provide a reliable seal for handholes in boilers, ensuring leak-free operation and optimal performance. Blue Max"Elliptical" 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. ProductSiteLaunchDate : 2023-08-15T04:45:29.659Z Size : 16" x 18" x 1-1/4" Flange Style : 2030E SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 31400000 UpperTemperatureRating : 500 degrees_fahrenheit