Welcome to RM Cotton's online store

Welcome to RM Cotton Company, Largest Hydronic Inventory in the Midwest!

  • Boilers
  • Burners
  • Pumps
  • Water Heaters
  • Accessories

If you can't find what you are looking for call us at 763.473.4640

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Topog-E

The Topog-E® Gasket Co. has been manufacturing and selling molded rubber gaskets around the world for over forty years. We make gaskets to fit every steam boiler in production today, and our gaskets are internationally recognized and renowned for their high quality, exceptional performance, and ease of application.