14 x 25 x 36 1/2" FLANGE OUT CAPPED & LINED 14 x 25 x 36 1/2" FLANGE OUT CAPPED & LINED Part Number: FURNACE RTN HORZ A What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
14.5 x 21 x 48 NO FLANGE CAPPED 1 END & LINED 14.5 x 21 x 48 NO FLANGE CAPPED 1 END & LINED Part Number: COIL SUPPLY PLEM A What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
16 x 25 x 36 1/2" FLANGE OUT CAPPED & LINED 16 x 25 x 36 1/2" FLANGE OUT CAPPED & LINED Part Number: FURNACE RTN SIDE/HORZ B What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
17.5 x 21 x 36 LINED CAPPED ON 1 END 17.5 x 21 x 36 LINED CAPPED ON 1 END Part Number: AH RETURN PLEM BOX 18-30 What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
17.5 x 21 x 48 NO FLANGE CAPPED 1 END & LINED 17.5 x 21 x 48 NO FLANGE CAPPED 1 END & LINED Part Number: COIL SUPPLY PLEM B What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
18.5 x 16.5 x 48 LINED CAPPED ON 1 END 18.5 x 16.5 x 48 LINED CAPPED ON 1 END Part Number: AH SUPPLY PLEM BOX 18-30 What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
18.5 x 22 x 24 1" FLANGE TURNED IN 24GA LINED 18.5 x 22 x 24 1" FLANGE TURNED IN 24GA LINED Part Number: AH STAND BOX 18-30 What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
20 x 25 x 36 1/2" FLANGE OUT CAPPED & LINED 20 x 25 x 36 1/2" FLANGE OUT CAPPED & LINED Part Number: FURNACE RTN HORZ C What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
21 x 21 x 36 LINED CAPPED ON 1 END 21 x 21 x 36 LINED CAPPED ON 1 END Part Number: AH RETURN PLEM BOX 36-60 What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
21 x 21 x 48 NO FLANGE CAPPED 1 END & LINED 21 x 21 x 48 NO FLANGE CAPPED 1 END & LINED Part Number: COIL SUPPLY PLEM C What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
21.5 x 16.5 x 48 LINED CAPPED ON 1 END 21.5 x 16.5 x 48 LINED CAPPED ON 1 END Part Number: AH SUPPLY PLEM BOX 36-60 What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist
21.5 x 22 x 24 1" FLANGE TURNED IN 24GA LINED 21.5 x 22 x 24 1" FLANGE TURNED IN 24GA LINED Part Number: AH STAND BOX 36-60 What's the price? Sign In or Register for pricing and inventory. Quick View View more details Compare Add To Wishlist