Everbilt 3 in. - 4 in. Plastic Duct to Duct Increaser

Everbilt 3 in. - 4 in. Plastic Duct to Duct Increaser

  • $4.90
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The Duct to Duct Increaser connects 3 in. to 4 in. ducts together. It is ideal for bathroom fan exhaust applications. Finished in black color. The increaser is designed to be a tight fit to reduce air leaks in the connections. When using the increaser with a 3 in or 4 in snap pipe (aluminum or galvanized) , it may be necessary to unsnap the receiving end of the pipe, then insert the increaser and snap the pipe back together.