Plenums & Filter Boxes | Surplus Network

HVAC.Sheet metal. Return air filter rack plenum,fit filter 20"x 20"x 4"

HVAC.Sheet metal. Return air filter...

$186.56 USD

HVAC.Sheet metal. Return air filter...

$186.56 USD

Custom plenum,for filter 18x24x1" , and round 14" collar ,

Custom plenum,for filter 18x24x1" ,...

$186.56 USD

Custom plenum,for filter 18x24x1" ,...

$186.56 USD

return air filter rack plenum, 16x24 with end cap, and round 14" collar , hvac

return air filter rack plenum, 16x24...

$164.64 USD

return air filter rack plenum, 16x24...

$164.64 USD

Filter rack plenum,return air for filter 20x20x1" and round 16" collar, hvac

Filter rack plenum,return air for...

$164.64 USD

Filter rack plenum,return air for...

$164.64 USD

Return air filter plenum, for filter 25x16x1" and round 14" collar , hvac duct

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, 16x20 with end cap, and round 14" collar , hvac duct

Return air filter plenum, 16x20 with...

$164.64 USD

Return air filter plenum, 16x20 with...

$164.64 USD

Return air filter plenum, for filter 20x20x1" , and round 14" collar , hvac duct

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, for filter 24x16x1" and round 14" collar , hvac duct

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, for filter 24x16x1" and round 12" collar , hvac duct

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, for filter...

$164.64 USD

Return air filter plenum, 16x20 with end cap, and round 12" collar , hvac duct

Return air filter plenum, 16x20 with...

$164.64 USD

Return air filter plenum, 16x20 with...

$164.64 USD

Return air filter plenum, 16x24 with end cap, and round 12" collar , hvac duct

Return air filter plenum, 16x24 with...

$164.64 USD

Return air filter plenum, 16x24 with...

$164.64 USD

Return air plenum for filter 25x16x1" and round 14" collar , hvac duct

Return air plenum for filter 25x16x1"...

$164.64 USD

Return air plenum for filter 25x16x1"...

$164.64 USD

Filter rack plenum,return air for filter 20x20x1" , and round 12" collar, hvac

Filter rack plenum,return air for...

$164.64 USD

Filter rack plenum,return air for...

$164.64 USD

Rinnai 804000074 Condensate Neutralizer Kit(S24)

Rinnai 804000074 Condensate...

$100.00 USD

Rinnai 804000074 Condensate...

$100.00 USD

HVAC.Return air filter rack plenum 16 x 25 x 8",fit filter 16"x25"x4"

HVAC.Return air filter rack plenum 16...

$188.68 USD

HVAC.Return air filter rack plenum 16...

$188.68 USD

Return air plenum, 16 x 20" ***( not for filter)*** and round 14" collar,HVAC .

Return air plenum, 16 x 20" ***( not...

$148.40 USD

Return air plenum, 16 x 20" ***( not...

$148.40 USD

return air plenum, 16x20 ***( not for filter)*** and round 16" collar, hvac

return air plenum, 16x20 ***( not...

$148.40 USD

return air plenum, 16x20 ***( not...

$148.40 USD

Return air plenum, 16 x 20" ***( not for filter)*** and round 12" collar,HVAC .

Return air plenum, 16 x 20" ***( not...

$148.40 USD

Return air plenum, 16 x 20" ***( not...

$148.40 USD

Custom Return air plenum, for filter grill 20 x 30" and 18" collar.

Custom Return air plenum, for filter...

$250.00 USD

Custom Return air plenum, for filter...

$250.00 USD

Return Air Filter Rack Plenum, 20 x 20 x 1" filter, duct work, hvac.

Return Air Filter Rack Plenum, 20 x...

$154.35 USD

Return Air Filter Rack Plenum, 20 x...

$154.35 USD

Return Air Filter Rack Plenum, 16 x 25 x 1" filter, duct work, hvac, sheet metal

Return Air Filter Rack Plenum, 16 x...

$154.35 USD

Return Air Filter Rack Plenum, 16 x...

$154.35 USD

Return Air Filter Rack Plenum, 16 x 24 x 1" filter, duct work, hvac, sheet metal

Return Air Filter Rack Plenum, 16 x...

$154.35 USD

Return Air Filter Rack Plenum, 16 x...

$154.35 USD

Return Air Filter Rack Plenum,for filter 24x16x1" duct work,hvac sheet metal

Return Air Filter Rack Plenum,for...

$154.35 USD

Return Air Filter Rack Plenum,for...

$154.35 USD

Custom Return air plenum, 20 x 20" ***( not for filter)*** and 16" collar.

Custom Return air plenum, 20 x 20"...

$150.52 USD

Custom Return air plenum, 20 x 20"...

$150.52 USD

Custom Return air plenum, for filter grill 20 x 30" and 16" collar.

Custom Return air plenum, for filter...

$240.00 USD

Custom Return air plenum, for filter...

$240.00 USD

UNICO M3642R1 RETURN AIR PLENUM CABINET 210937

UNICO M3642R1 RETURN AIR PLENUM...

$240.00 USD

UNICO M3642R1 RETURN AIR PLENUM...

$240.00 USD

Custom Return air plenum, for filter grill 20 x 30" and 14" collar.

Custom Return air plenum, for filter...

$240.00 USD

Custom Return air plenum, for filter...

$240.00 USD

HVAC.Return air filter rack plenum,collar 18" diameter,fit filter 20"x 20"x 4"

HVAC.Return air filter rack...

$198.07 USD

HVAC.Return air filter rack...

$198.07 USD

Return air filter plenum, 14x20 with end cap, and round 10" collar , hvac duct

Return air filter plenum, 14x20 with...

$162.06 USD

Return air filter plenum, 14x20 with...

$162.06 USD

Return air filter plenum, 14x20 with end cap, and round 12" collar , hvac duct

Return air filter plenum, 14x20 with...

$162.06 USD

Return air filter plenum, 14x20 with...

$162.06 USD

HVAC.Return air filter rack plenum for filter 20 x 25 x 4",collar 18" diameter.

HVAC.Return air filter rack plenum...

$227.90 USD

HVAC.Return air filter rack plenum...

$227.90 USD

CUSTOM Return air plenum for filter 12x12x1" and round collar 8" diameter

CUSTOM Return air plenum for filter...

$153.70 USD

CUSTOM Return air plenum for filter...

$153.70 USD

Return Air Filter Rack Plenum, 16 x 20 x 1" filter, duct work, hvac, sheet metal

Return Air Filter Rack Plenum, 16 x...

$149.21 USD

Return Air Filter Rack Plenum, 16 x...

$149.21 USD

Return air filter rack plenum,for filter 25x20x1" , and round collar , HVAC

Return air filter rack plenum,for...

$190.80 USD

Return air filter rack plenum,for...

$190.80 USD

Return air filter rack plenum,for filter 24x20x1" , and round collar , HVAC

Return air filter rack plenum,for...

$190.80 USD

Return air filter rack plenum,for...

$190.80 USD

Return air plenum, 24 x 24" ***( not for filter)*** and round 18" collar,

Return air plenum, 24 x 24" ***( not...

$199.35 USD

Return air plenum, 24 x 24" ***( not...

$199.35 USD

TRANE BAYRETFLGAA RETURN DUCT FLANGE KIT 203708

TRANE BAYRETFLGAA RETURN DUCT FLANGE...

$13.00 USD

TRANE BAYRETFLGAA RETURN DUCT FLANGE...

$13.00 USD

Custom .Return air plenum, 25 x 20 x 5" ***( not for filter)*** 14" collar

Custom .Return air plenum, 25 x 20 x...

$207.00 USD

Custom .Return air plenum, 25 x 20 x...

$207.00 USD

Titus 6 x 6 Exhaust Return Grill with damper

Titus 6 x 6 Exhaust Return Grill with...

$15.00 USD

Titus 6 x 6 Exhaust Return Grill with...

$15.00 USD

TRANE BAYSUPFLGAA SUPPLY DUCT FLANGE KIT FOR AIR HANDLERS 203665

TRANE BAYSUPFLGAA SUPPLY DUCT FLANGE...

$17.00 USD

TRANE BAYSUPFLGAA SUPPLY DUCT FLANGE...

$17.00 USD

TRANE BAYSUPFLGCA DUCT FLANGE KIT FOR CABINET C 203666

TRANE BAYSUPFLGCA DUCT FLANGE KIT FOR...

$17.00 USD

TRANE BAYSUPFLGCA DUCT FLANGE KIT FOR...

$17.00 USD

Titus 10 x 10 Exhaust Return Grill with damper

Titus 10 x 10 Exhaust Return Grill...

$18.00 USD

Titus 10 x 10 Exhaust Return Grill...

$18.00 USD

Titus 8x8 Perforated Exhaust Return Grill with damper

Titus 8x8 Perforated Exhaust Return...

$18.00 USD

Titus 8x8 Perforated Exhaust Return...

$18.00 USD

Return air filter plenum, 20x16 with end cap, and round 12" collar , hvac duct

Return air filter plenum, 20x16 with...

$162.18 USD

Return air filter plenum, 20x16 with...

$162.18 USD

Return air filter plenum, 20x14 with end cap, and round 12" collar , hvac duct

Return air filter plenum, 20x14 with...

$162.18 USD

Return air filter plenum, 20x14 with...

$162.18 USD

Quest Return Air Duct Collar for Overhead Dehumidifiers

Quest Return Air Duct Collar for...

$75.00 USD

Quest Return Air Duct Collar for...

$75.00 USD

Metal Zinc Return Air Plenum 16" x 24" x 23.5" P1624235-R6-1-05BX

Metal Zinc Return Air Plenum 16" x...

$37.49 USD

Metal Zinc Return Air Plenum 16" x...

$37.49 USD

HVAC.Return air filter rack plenum,for filter 16"x20"x4" Long Side in

HVAC.Return air filter rack...

$184.44 USD

HVAC.Return air filter rack...

$184.44 USD

HVAC.Return air filter rack plenum 16 x 20 x 8",fit filter 16"x20"x4"

HVAC.Return air filter rack plenum 16...

$184.44 USD

HVAC.Return air filter rack plenum 16...

$184.44 USD

Return Air Filter Rack Plenum, for filter 25 x 20 x 1" , duct work, hvac

Return Air Filter Rack Plenum, for...

$174.90 USD

Return Air Filter Rack Plenum, for...

$174.90 USD

HVAC.Return air filter rack plenum,collar 6" diameter,fit filter 10x10x4"

HVAC.Return air filter rack...

$185.20 USD

HVAC.Return air filter rack...

$185.20 USD

Return air filter plenum, 20x14 with round 12" and two 6" collars ,

Return air filter plenum, 20x14 with...

$180.06 USD

Return air filter plenum, 20x14 with...

$180.06 USD

150k NEW STYLE Hydronic hanging heater, w/CORD, VARIABLE SPEED AND RHEOSTAT!

150k NEW STYLE Hydronic hanging...

$497.00 USD

150k NEW STYLE Hydronic hanging...

$497.00 USD

Custom Air filter rack plenum,for filter 20x16x1",and 4 round collars 6"diameter

Custom Air filter rack plenum,for...

$195.50 USD

Custom Air filter rack plenum,for...

$195.50 USD

Plenum , 3/4" hem flange on one 20"x20" end , Bend to the inside

Plenum , 3/4" hem flange on one...

$195.50 USD

Plenum , 3/4" hem flange on one...

$195.50 USD

HVAC.Return air filter rack plenum,collar 14" diameter,fit filter 20"x 20"x 4"

HVAC.Return air filter rack...

$195.50 USD

HVAC.Return air filter rack...

$195.50 USD

HVAC.Return air filter rack plenum,collar 16" diameter,fit filter 20"x 20"x 4"

HVAC.Return air filter rack...

$195.50 USD

HVAC.Return air filter rack...

$195.50 USD

Rinnai 804000074 Condensate Neutralizer Kit For Tankless Water Heater r13

Rinnai 804000074 Condensate...

$94.95 USD

Rinnai 804000074 Condensate...

$94.95 USD

HVAC.Return air filter rack plenum,collar 14" diameter *****Hinged door******

HVAC.Return air filter rack...

$236.66 USD

HVAC.Return air filter rack...

$236.66 USD

Plenum 3-1/4 x 10 x 24 G90 24gauges

Plenum 3-1/4 x 10 x 24 G90 24gauges

$120.00 USD

Plenum 3-1/4 x 10 x 24 G90 24gauges

$120.00 USD

Lot of 10 Universal Copper 1/2"D Butt Connectors 7/8" Long Refrigeration HVAC

Lot of 10 Universal Copper 1/2"D Butt...

$8.00 USD

Lot of 10 Universal Copper 1/2"D Butt...

$8.00 USD

return air plenum, 14x24***( not for filter)***, and round 14" collar,hvac

return air plenum, 14x24***( not...

$159.00 USD

return air plenum, 14x24***( not...

$159.00 USD

Return Air Filter Rack Plenum, 14 x 22 x 1" filter, duct work, hvac, sheet metal

Return Air Filter Rack Plenum, 14 x...

$159.00 USD

Return Air Filter Rack Plenum, 14 x...

$159.00 USD

HVAC.Return air filter rack plenum,collar 12" diameter,fit filter 20"x 20"x 4"

HVAC.Return air filter rack...

$196.10 USD

HVAC.Return air filter rack...

$196.10 USD

return air plenum, 14x20***( not for filter)***, and round 12" collar,hvac

return air plenum, 14x20***( not...

$143.10 USD

return air plenum, 14x20***( not...

$143.10 USD

return air plenum, 14x20***( not for filter)***, and round 8" collar,hvac

return air plenum, 14x20***( not...

$143.10 USD

return air plenum, 14x20***( not...

$143.10 USD

Return air plenum for filter 25x16x1" and round 12" collar , hvac duct

Return air plenum for filter 25x16x1"...

$177.49 USD

Return air plenum for filter 25x16x1"...

$177.49 USD

HVAC.Return air. Filter rack plenum for filter 16 x 20 x 4",collar 14" diameter.

HVAC.Return air. Filter rack plenum...

$192.93 USD

HVAC.Return air. Filter rack plenum...

$192.93 USD

HVAC.Return air filter rack plenum for filter 20 x 25 x 4",collar 16" diameter.

HVAC.Return air filter rack plenum...

$222.60 USD

HVAC.Return air filter rack plenum...

$222.60 USD

return air plenum, 16x25***( not for filter)***, and round 12" collar,hvac

return air plenum, 16x25***( not...

$148.82 USD

return air plenum, 16x25***( not...

$148.82 USD

Custom return air plenum, 14x20***( not for filter)***, and round 14" collar

Custom return air plenum, 14x20***(...

$148.82 USD

Custom return air plenum, 14x20***(...

$148.82 USD

Return air plenum, 20 x 20" ***( not for filter)***,and round 12" collar,HVAC

Return air plenum, 20 x 20" ***( not...

$148.82 USD

Return air plenum, 20 x 20" ***( not...

$148.82 USD

return air plenum, 16x25***( not for filter)***, and round 14" collar,hvac

return air plenum, 16x25***( not...

$148.82 USD

return air plenum, 16x25***( not...

$148.82 USD

HVAC.Return air filter rack plenum for filter 16 x 25 x 4",collar 14" diameter.

HVAC.Return air filter rack plenum...

$195.04 USD

HVAC.Return air filter rack plenum...

$195.04 USD

Return air filter rack plenum for filter 16 x 25 x 4",collar 14" diameter.HVAC.

Return air filter rack plenum for...

$195.04 USD

Return air filter rack plenum for...

$195.04 USD

CUSTOM Return air plenum for filter 10x10x1" and round collar 8" diameter

CUSTOM Return air plenum for filter...

$141.49 USD

CUSTOM Return air plenum for filter...

$141.49 USD

CUSTOM Return air plenum for filter 10x10x1" and round collar 6" diameter

CUSTOM Return air plenum for filter...

$141.49 USD

CUSTOM Return air plenum for filter...

$141.49 USD

Return air plenum, 20 x 20" ***( not for filter)*** and round 18" collar,HVAC .

Return air plenum, 20 x 20" ***( not...

$151.11 USD

Return air plenum, 20 x 20" ***( not...

$151.11 USD

HVAC.Return air filter rack plenum 16 x 24 x 8",fit filter 16"x24"x4"

HVAC.Return air filter rack plenum 16...

$188.89 USD

HVAC.Return air filter rack plenum 16...

$188.89 USD

Return air plenum for filter 25x16x1" and round 14" collar , hvac duct

Return air plenum for filter 25x16x1"...

$174.92 USD

Return air plenum for filter 25x16x1"...

$174.92 USD

HVAC.Return air filter rack plenum for filter 16 x 20 x 4",collar 12" diameter.

HVAC.Return air filter rack plenum...

$192.92 USD

HVAC.Return air filter rack plenum...

$192.92 USD

HVAC.Return air filter rack plenum fit filter 16 x 20 x 4",collar 14" diameter.

HVAC.Return air filter rack plenum...

$192.92 USD

HVAC.Return air filter rack plenum...

$192.92 USD

Return air filter rack plenum for filter 16 x 20 x 4",collar 14" diameter.HVAC

Return air filter rack plenum for...

$192.92 USD

Return air filter rack plenum for...

$192.92 USD

HVAC.Return air filter rack plenum for filter 16 x 20 x 4",collar 14" diameter.

HVAC.Return air filter rack plenum...

$192.92 USD

HVAC.Return air filter rack plenum...

$192.92 USD

Custom.Plenum for filter 14 x 14 x 4" *****Hinged door******

Custom.Plenum for filter 14 x 14 x 4"...

$223.80 USD

Custom.Plenum for filter 14 x 14 x 4"...

$223.80 USD

return air plenum, 16x25 ***( not for filter)*** and round 16" collar, hvac

return air plenum, 16x25 ***( not...

$150.00 USD

return air plenum, 16x25 ***( not...

$150.00 USD

Return air plenum, 20 x 20" ***( not for filter)*** and round 14" collar. HVAC

Return air plenum, 20 x 20" ***( not...

$149.97 USD

Return air plenum, 20 x 20" ***( not...

$149.97 USD

Return air filter plenum, for filter 20x20x1" , and round 18" collar , hvac duct

Return air filter plenum, for filter...

$169.60 USD

Return air filter plenum, for filter...

$169.60 USD