The kit includes a 32-inch nylon brush, 32-inch silica carbide brush, and two 13- to 15-inch guide legs. Vac Systems International, 1800 E. Cliff Rd. #11, Burnsville, MN 55337; 800-597-3955; ...

The Super RBS Brush & Air Wash System features the RBS-1500 rotary brush system, which has a redesigned cleaning tool. The redesign includes a new guide system that lets the user adjust the height of ...

Friesen’s ductbots might be great for keeping our heating and cooling systems clean, but they may also be terrifying for building residents. Image these things skittering through the ceiling as ...