HD Grant 24X24 Perforated Return PPDDR142424TB

The HD Grant PPDDR142424TB is a 24 by 24 inch perforated return air grille with a 14 inch round duct collar, for installation in a T-bar suspended ceiling.

Perforated face grilles are specified where the ceiling appearance matters. A perforated plate reads as a flat, uniform element in the ceiling plane rather than the louvered face of a conventional bar grille, and it visually matches perforated supply diffusers used in the same ceiling, which is why architects frequently call for them in offices, healthcare, and retail interiors.

The 14 inch collar sets the capacity. Return grilles are sized by the airflow they must carry and by the face velocity that results, since velocity determines the noise the grille generates. A 14 inch collar handles a substantial return volume, suiting open plan areas and rooms where a single return serves a large floor area.

Return grille sizing is habitually neglected relative to supply. An undersized return raises system static pressure, reduces airflow across the coil, and produces audible air noise at the grille, and because the symptom appears as poor performance rather than an obvious fault, the cause is frequently missed.

Applications include commercial offices, retail spaces, schools, and healthcare facilities with suspended ceilings. Confirm the ceiling grid module, verify the collar matches the connecting duct, and check face velocity against the design airflow.

Brand

HD Grant

SKU

PPDDR142424TB

Category

Return Air Grilles

Weight

7.9 lbs

Dimensions

24.00" x 24.00" x 3.50"

Price

$142.00

Availability

In stock

Rating

4.4 / 5.0