UPC-242-20 - 2.5" Summer/Winter Shut-off Plugs for The Unico System High Velocity Small Duct HVAC, White, Plastic, 20/box

Seasonal changes or personal climate preferences in your home will have you controlling air conditioned cool or heated/warm air movement, in part by using summer/winter shut-off plugs. 

20 units per box; ships in 5x5x5 inch pkg. 

This product is for 2.5 inch system. 

Plugs not sold individually.