One of the biggest manufacturers of sheet metal products in the nation, M&M ManufacturingTM ("M&M") mainly serves the ventilation and air distribution industries. Round, rectangular, oval, and spiral ducting, fittings, and accessories are all offered by M&M for use in both residential and commercial buildings.

The manufacturer of HVAC sheet metal duct and accessories, SnappyTM Metal Products, was purchased by M&M in 2016. Customers in the Midwest and Northeast of the United States are served by Snappy. nappyco.com