The SSHFG 550 HD Heavy Duty Single Deflection Hinged Filter Grille is hinged in our 1000 Plaster Frame and secured with low profile ¼-turn fasteners. The hinged filter grille allows easy access to filters or mechanical equipment. Specify with filter clips for filter applications; 1″ filter depth is standard, with optional filter depths up to 2″.
The SSHFG 550 HD face blades are non-adjustable and available in either a horizontal position (H) or vertical position (V), factory set at either 0° or 45° degrees, spaced on .750″ centers.
The same hollow air-foil blades used on the supply grilles are used on the return air grilles, and blades are reinforced from the back on 6″ – 8″ centers. The SSHFG 550 HD has blade support to prevent damage, making them ideal for heavy duty applications.
Specify: Series S-44 Opposed Blade Damper to make return register. The S-44 OBD assures even distribution of air across the grille face, as well as positive volume control.
Stainless steel grilles and registers are well suited for applications involving corrosive environments, high humidity or frequent cleaning with strong chemicals.
Typical projects include hospitals, clean rooms, laboratories, industrial and manufacturing facilities.