Hart & Cooley 672 20X25 043359 White Return Air Grille

The Hart & Cooley 43359 is a 672 series return air grille measuring 20 by 25 inches nominal, finished in white steel.

At 20 by 25 inches this is a large return grille, typically serving as the primary return on a residential system or a substantial return in light commercial work. The size corresponds to a widely used filter dimension, which is convenient where a filter is fitted at the air handler in a matching frame.

A practical consideration at larger sizes is the return opening itself. A grille of this size requires a correspondingly large opening in the wall or ceiling, and where that opening is cut between framing members, the framing must be arranged to suit. Cutting a joist or stud to accommodate a return opening without providing a header is a structural matter, not a mechanical one, and it is a shortcut occasionally taken on retrofits.

Where the return is a wall opening feeding into a stud cavity used as a duct, note that many jurisdictions restrict or prohibit the use of building cavities as return plenums, and that such cavities are rarely sealed adequately in practice.

The 672 series has no filter frame.

Applications include residential and light commercial return air installations in walls and ceilings.

Brand

Hart & Cooley

SKU

43359

Category

Return Air Grilles

Weight

5.2 lbs

Dimensions

26.75" x 21.75" x 0.31"

Price

$94.00

Availability

In stock

Rating

0 / 5.0