Oswald Supply sells boiler manhole cover plates, rings, gaskets and hardware for ALL makes and models.
For the past 90 years, Oswald Supply has been a leader in the industry, distributing manhole cover plates nationwide. Our manhole cover plates are made of pressed steel SA516-70. Low pressure and high pressure applications.
Oswald Supply Company Sells Boiler Sections and Assembly Parts
Supplying Boiler Repair Parts Since 1923
We stock cast iron boiler sections for most current boilers and some obsolete boilers along with all the necessary assembly accessories such as port seals, push nipples, hi-temperature rope, silicone adhesive and tie rods.