This will only fit the old “cage” style groups, with the removable boiler nuts and studs.
Steam flange gasket
± 4.25″ Wide x 3.73″ Long
2.25″ x 2.09″ ISD ,
8ea 0.31″ Bolt holes.
522B 3/32″ Thick
For steam to 399° C (750° F), compressed sheet, aramid fiber with nitrile binder.
Made in the USA.
It has been recommended to use Loctite #68035 with this gasket.
This will not work with the welded stud boilers. For that version use MZ_255.
