Grilles

Hart and Cooley 659-3010-W 30" x 10" Steel Return Air Filter Grille - White

Air Pipe Fittings

Southwark 5876 7" x 6" 26 Gauge Three Piece Smoke Pipe Increaser / Reducer

Replacement Air Filters

Purolator F-312 16 inch X 20 inch X 2 inch Disposable Fiberglass Media Air Filter

Purolator F-312 16 inch X 25 inch X 2 inch Disposable Fiberglass Media Air Filter

Purolator F-312 20 inch X 20 inch X 2 inch Disposable Fiberglass Media Air Filter

Purolator HE40 16 inch X 20 inch X 1 inch Hi-E 40 Pleated Air Filter

Purolator HE40 20 inch X 20 inch X 1 inch Hi-E 40 Pleated Air Filter

Miscellaneous

FME 10 X 24 X1 40% AIR FILTER

10 X 22 X 1 EZ FLOW AIR FILTER