Return Air Grilles
25 x 14 return air grille
| Brand | shengtongJH |
|---|---|
| Nominal opening W × H | 25 × 14 in / 635 × 355.6 mm |
| Orientation | Landscape; not a renamed 14 × 25 installation |
| Material options | Powder-coated steel or aluminium |
| Face | Fixed louvers; hinged filter face when selected |
| Filter depth options | Nominal 1 in / 2 in holder, matched to actual filter dimensions |
| Hinge location | Long or short side as selected on the drawing |
| Latches | Accessible selected catches or quarter-turn fastening |
| Outer frame | Sized separately from duct opening and filter seat |
| Finish | White / light grey powder coat or specified finish |
| Wall interface | Surface flange or framed recessed opening |
| Air selection | Grille and filter resistance evaluated together |
Reversing width and height changes the installation geometry, not the area by itself. Filter depth and hinge access must match the actual assembly.
Hinge side, filter holder, frame depth and finish can be customized to the available service clearance and return-air arrangement.
A 25 x 14 return air grille describes a landscape opening when dimensions are ordered width first. This orientation is especially relevant when a filter access face must open beside adjacent equipment, walls or commercial joinery.
Plan the direction of opening
A wide filter face can be awkward if it opens toward a wall corner or another access panel. Select the hinge side from the maintenance approach, not simply from the appearance of the front elevation. The face needs enough space to open and to stay controlled while the filter is handled.
Where the assembly is above normal reach, include the technician's access position in the layout. A hinged panel that opens directly into a ladder position can make a routine filter change unnecessarily difficult.
Keep orientation explicit on the order
State width and height in installation position and show the blade direction. Reversing the numbers does not create a different opening area, but it can change the hinge span, latch location, filter withdrawal direction and relationship with the surrounding frame.
Choose the holder around the filter
A filter has actual dimensions and an airflow direction as well as a nominal size. The holder should locate it securely without forcing the media or leaving a bypass gap. Confirm the filter construction and depth before deciding the neck and rear clearance of the grille.
Do not add a filter at the face without considering the filter already fitted at the air-handling equipment. The additional resistance must fit the system design. Where a face filter is intended as the service point, make that role clear in the maintenance record.
Finish with a repeatable service arrangement
Use catches that remain accessible after decoration and keep the frame stable when the face is open. Agree whether seals and spare filters form part of the supply. A coordinated assembly avoids a later search for a filter that fits an unusual holder or hardware that cannot be replaced without removing the entire grille.
Hinge side, filter holder, frame depth and finish can be customized to the available service clearance and return-air arrangement.