Envirco Datasheets for Air Diffusers and Grilles

Air diffusers and grilles are used to control and direct airflow in heating, ventilation, and air conditioning (HVAC) systems.
Air Diffusers and Grilles: Learn more

Product Name Notes
Introduction The 1/2” filter return grilles have fixed horizontal blades (parallel to width/first specified dimension) spaced on 1/2” centers with 45° straight face deflection. The grille core is secured to...
Introduction The 1/2” hinged filter return grilles have non-adjustable, hinged horizontal blades spaced on 1/2” centers. The grille core is secured to the face of the outer frame with stainless...
Introduction The 1/2” return grille is styled to match our supply grilles. The face bars are non-adjustable and are available in either a horizontal (50RG-H) or vertical (50RG-V) position, factory...
Introduction The 3/4” filter return grilles have fixed horizontal blades (parallel to width/first specified dimension) spaced on 3/4” centers with 45° straight face deflection. The grille core is secured to...
Introduction The 3/4” hinged filter return grilles have non-adjustable, hinged horizontal blades spaced on 3/4” centers. The grille core is secured to the face of the outer frame with stainless...
Introduction The 3/4” return grille is styled to match our supply grilles. The face bars are non-adjustable and are available in either a horizontal (34RG-H) or vertical (34RG-V) position, factory...
Introduction The 3/4” single deflection supply grille provides effective directional control of the air stream in one or two directions. The bars are pivoted at the face, giving a uniform,...
Introduction The double deflection supply grille provides effective directional control of the air stream in one, two, three, or four directions. Each bank of bars is pivoted at the front...
Introduction The egg crate return grille series provides 90% free area. Bars are 24-gauge, Type 304 stainless steel in a 1/2” x 1/2” x 1/2” grid core. Type 316 stainless...
Introduction The opposed blade damper assures even distribution of air as well as positive volume control. The damper can be attached to any of our grille products. The face operating...