Ventilation

Return Air Grille, Overall Depth 1/4 in, Overall Height 25 3/4 in, Overall Width 25 3/4 in, Maximum Opening Height 24 in, Maximum Opening Width 24 in, Filter Depth Not Applicable, Filter Height Not Applicable, Filter Width Not Applicable, Grille Color...

All-steel construction. Wide border compensates for oversize floor openings. Strong rolled edge face bars set at graduated angles for wide diffusion. Parallel valves deflect air to wall or into room.

Roof Mounting Rail, Overall Length 3 ft, Weight Capacity 900 lb, Overall Height 8 in, Overall Width 3 5/8 in, Includes Galvanized Steel Counter Flashing with Screws, 2 x 4 Wood Nailer, For Fan Type Blowers and Condensers, Finish Galvanized, For Use With...

Treatment for humidifiers. Compatible with all filters and humidifiers. Vitamin C helps neutralize chlorine in the water and prevents mineral build-up. 3-step system - Step 1: bacteriostatic, Step 2: Treatment, Step 3: Refresh.

Duct Reducer, For Nominal Duct Diameter 12 in, Inlet Diameter 12 in, Inside Diameter 12 in, Overall Length 10 in, Product Type Reducer, Weight 1.9 lb, Material Thickness 26 ga, Maximum Pressure Rating 3 in wc, Maximum Temperature Rating 212 Degrees F,...

These prefinished light oak contemporary hardwood floor registers are prestained and sealed with two coats of polyurethane. Unique tongue and groove assembly provides for superior strength as well as beauty. Complete with adjustable air diffuser.

Return Air Grille, Overall Depth 1/4 in, Overall Height 7 3/4 in, Overall Width 25 3/4 in, Maximum Opening Height 6 in, Maximum Opening Width 24 in, Filter Depth Not Applicable, Filter Height Not Applicable, Filter Width Not Applicable, Grille Color...

Return Air Grille, Overall Depth 3 1/2 in, Overall Height 23 3/4 in, Overall Width 23 3/4 in, Maximum Opening Height 6 in, Maximum Opening Width 14 in, Filter Depth Not Applicable, Filter Height Not Applicable, Filter Width Not Applicable, Grille Color...

Individually assembled strong steel bars. Multi-louver damper. List size is duct size. Brown.

100% therapeutic grade essential oils humidifier fragrance. Pleasant aromas with the benefits of essential oils. Ideal for use with all types of humidifiers.

Stamped steel construction with turn back frame. 2-way airflow pattern. 2 grille bars to an inch. Stamped 1-piece face with multilouvered damper. Metal handle. White finish. Size in description is rough opening, actual product back is 1/4" smaller.

All-steel construction. Wide border compensates for oversize floor openings. Strong rolled edge face bars set at graduated angles for wide diffusion. Parallel valves deflect air to wall or into room.