Flexible Cold Air Return Duct

The duct board return air box is an r6 the duct board return air box is an r6 insulated box that installs traditionally in a ceiling.

Flexible cold air return duct.

But without proper support ducts can develops sags or kinks that reduce airflow 4a 4b. Can accept any size collar up to 18 in. This additional insulation provides greater thermal efficiency to save energy. Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct.

To prevent problems use saddles or straps to support at regular intervals 4c 4d. If the supply ducts are in the floor then the return air should be located up high. Product is knocked down for shipping and must be assembled. In addition its flexibility allows for easier installation in hard to reach areas.

Insulated flexible duct r6 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications. Flexible return air kits are manufactured to meet the highest quality standards in strength permeability and fire resistance required in a flexible air duct. Sometimes the best route for a flexible duct run is up and over an obstruction. The master flow 6 in.

Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes. Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct. Menards offers a wide range of ductwork pipe and fittings to help your ductwork systems run efficiently these products are used for warm air return supply and exhaust systems. Item 1790033 model 1790033.

Free call from tim carter about your ducts click or tap here. The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product. Can be easily cut to size. This insulated etl class 1 air duct is fabricated with an acoustical liner which allows sound energy to penetrate the duct wall.

If the supply ducts are high or in the ceiling then the return air ducts or grills should be low on a wall. Used as a central return vent box filter grill not included.