Exhaust Fans with 20" Diameter Blade

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Blade Diameter

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Mounting Location

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Base Width

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1,000 ft³/min to 9,999 ft³/min

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Overall Height

Opening Height

Airflow @ Static Pressure

5,000 ft³/min @ 0 in. H₂O

5,400 ft³/min @ 0 in. H₂O

4,000 ft³/min @ 0.2 in. H₂O

4,900 ft³/min @ 1/2 in. H₂O

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Number of Speeds

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Motor Speed

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Export Control Classification Number (ECCN)

REACH

15 Products

Light Duty Direct-Drive Wall-Mount Exhaust Fans with Louvers

These light duty fans are designed for use without duct. They come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area. All have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.

120V AC, Single Phase (Hardwire)—Totally Enclosed Motor Enclosure

Image of Product. Front orientation. Exhaust Fans. Light Duty Direct-Drive Wall-Mount Exhaust Fans with Louvers .

							For Opening		Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Ambient Temp., ° F	Control Type	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia.	Certification		Each
20"	2,925	Not Rated	Direct	1,140	2	1/4	20 1/2"	20 1/2"	23"	23"	9 1/2"	100	Pull Switch	Steel	Aluminum	No	5/16"	UL Recognized Component	00000000	0000000

120V AC, Single Phase—3-Blade Plug

							For Opening		Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Ambient Temp., ° F	Control Type	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia.	Certification		Each
20"	2,925	Not Rated	Direct	1,140	2	1/4	20 1/2"	20 1/2"	23"	23"	9 1/2"	100	Pull Switch	Steel	Aluminum	No	5/16"	UL Recognized Component	00000000	0000000

230/460V AC, Three Phase (Hardwire)—Totally Enclosed Motor Enclosure

							For Opening		Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Ambient Temp., ° F	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia.	Certification		Each
20"	2,820	Not Rated	Direct	1,720	1	1/3	20 1/2"	20 1/2"	23"	23"	12 1/2"	100	Steel	Aluminum	No	1/4"	UL Recognized Component	00000000	0000000

Direct-Drive Wall-Mount Exhaust Fans

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.

120V AC, Single Phase (Hardwire)—Open Dripproof (ODP) Motor Enclosure

Image of Product. Front orientation. Open Dripproof (ODP) Motor Enclosure. Direct-Drive Wall-Mount Exhaust Fans .

Fans with an open dripproof (ODP) motor enclosure are for relatively clean, dry, indoor locations.

Exhaust Fan Collars—Use a collar (sold separately) to connect these fans to a louver.

Exhaust Fans																Exhaust Fan Collars
							Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Ambient Temp., ° F	Frame Material	Blade Material	Certification		Each		Each
20"	4,100	64 dBA @ 5 ft.	Direct	1,075	1	1/2	24 1/8"	24 1/8"	10 5/8"	100	Powder-Coated Steel	Aluminum	C-UL Listed, UL Listed	0000000	0000000	0000000	0000000

120V AC, Single Phase (Hardwire)—Totally Enclosed Motor Enclosure

Image of Product. Back orientation. 120V AC. Direct-Drive Wall-Mount Exhaust Fans , Totally Enclosed Motor Enclosure.

							Overall						Mounting Hole
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Ambient Temp., ° F	Blade Material	Guard Material	Dia.	Location	No. of		Each
20"	2,900	65 dBA @ 5 ft.	Direct	1,125	2	1/4	25 1/2"	25 1/2"	8 3/4"	100	Aluminum	Steel	1/4"	Guard	4	0000000	0000000

120/230V AC, Single Phase (Hardwire)—Totally Enclosed Motor Enclosure

Image of Product. Back orientation. 120V AC. Direct-Drive Wall-Mount Exhaust Fans .

Louvers—Fans with louvers create a weather-tight seal when they're turned off. The louvers open automatically on startup and spring closed when not in use.

Hoods—Hoods (sold separately) help extend the life of your exhaust fan by protecting it from harsh weather, such as severe wind, and debris.

Exhaust Fans																					Hoods
							For Opening		Overall						Mounting Hole
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Ambient Temp., ° F	Frame Material	Blade Material	Dia.	Location	No. of	Includes		Each		Each
20"	3,100	Not Rated	Direct	1,725	1	1/3	22"	22"	23 1/2"	23 1/2"	18 3/4"	100	Galvanized Steel	Aluminum	3/16"	Frame	4	Louvers	0000000	0000000	00000000	0000000

Belt-Drive Downdraft Roof-Mount Exhaust Fans

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. More economical than upblast roof-mount exhaust fans, these draw stagnant and humid air out through your roof and then direct it back toward the roof.

Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.

120V AC/208 to 230V AC, Single Phase (Hardwire)—Open Dripproof (ODP) Motor Enclosure

Image of Product. Front orientation. Exhaust Fans. Belt-Drive Downdraft Roof-Mount Exhaust Fans .

Exhaust Fans															Mounting Bases
							Overall
Blade Dia.	Airflow @ SP	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Dia.	Ht.	Base Wd.	Housing Material	Blade Material	Features		Each		Each
20"	4,900 ft³/min @ 1/2 in. H₂O 5,400 ft³/min @ 0 in. H₂O	74 dBA @ 5 ft.	Belt	1,080	1	1 1/2	38 1/4"	31 3/4"	30"	Aluminum	Aluminum	Bird Screen	0000000	000000000	0000000	0000000

Corrosion-Resistant Direct-Drive Wall-Mount Exhaust Fans with Louvers

Rust won't be a problem with the durable plastic housing and louvers on these fans. The fans come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area. All have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.

120/230V AC, Single Phase (Hardwire)—Totally Enclosed Motor Enclosure

Image of Product. Front orientation. Exhaust Fans. Corrosion-Resistant Direct-Drive Wall-Mount Exhaust Fans with Louvers.

							For Opening		Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Ambient Temp., ° F	Housing Material	Blade Material		Each
20"	3,100	Not Rated	Direct	1,700	1	1/3	25 3/4"	25 3/4"	28 1/4"	28 3/4"	25 1/2"	104	Fiberglass	Polypropylene	0000000	0000000

Dust-Resistant Direct-Drive Wall-Mount Exhaust Fans

Style 3

Better suited for dirty, dusty, and damp environments than standard direct-drive fans, these have a totally enclosed motor enclosure. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.

120V AC, Single Phase (Hardwire)—Totally Enclosed Motor Enclosure

Style 3

								Overall
Style	Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Wt., lb.	Ambient Temp., ° F	Frame Material	Blade Material	Certification		Each
3	20"	2,925	Not Rated	Direct	1,140	2	1/4	23"	23"	12"	35	100	Steel	Aluminum	UL Recognized Component	0000000	0000000

Hazardous Location Exhaust Fans

These fans have a motor that is UL listed for hazardous environments. Use them to draw stagnant and humid air out of a room or area.

120/230V AC, Single Phase—Hardwire

Image of Product. Front orientation. Exhaust Fans. Hazardous Location Exhaust Fans .

Direct Drive—Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Add a collar (sold separately) to connect a wall-mount fan these fans to a louver.

Exhaust Fans																Exhaust Fan Collars
							Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Housing Material	Blade Material	Certification	Hazardous Location Rating		Each		Each
20"	4,800	73 dBA @ 5 ft.	Direct	1,725	1	1/2	24 1/8"	24 1/8"	19 1/2"	Steel	Aluminum	C-UL Listed, UL Listed	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	0000000	000000000	0000000	0000000

230/460V AC, Three Phase—Hardwire

Direct Drive—Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Add a collar (sold separately) to connect a wall-mount fan these fans to a louver.

Exhaust Fans																Exhaust Fan Collars
							Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Housing Material	Blade Material	Certification	Hazardous Location Rating		Each		Each
20"	4,800	73 dBA @ 5 ft.	Direct	1,725	1	1/2	24 1/8"	24 1/8"	19 1/2"	Steel	Aluminum	C-UL Listed, UL Listed	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	0000000	000000000	0000000	0000000

Exterior-Wall-Mount Exhaust Fans

Good when you don't have room to mount an exhaust fan inside your facility, these fans attach to openings in outside walls. Use them to draw stagnant and humid air out of a room or area.

Note: Airflow depends on the resistance created by louvers, filters, and ductwork in your system. This resistance, known as static pressure (SP), is measured in inches of water.

120/230V AC, Single Phase (Hardwire)—Totally Enclosed Motor Enclosure

Image of Product. Front orientation. Totally Enclosed Motor Enclosure. Exterior-Wall-Mount Exhaust Fans.

Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments. They mount through the wall, so you'll need to cut a hole on the inside of the wall as well.

Direct Drive—Direct-drive fans have fewer moving parts than belt-drive fans, so they’re easier to maintain.

							For Opening			Overall
Blade Dia.	Airflow @ SP	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Dia.	Ht.	Wd.	Dia.	Dp.	Ambient Temp., ° F	Blade Material	Mounting Fasteners Included	Includes		Each
20"	4,000 ft³/min @ 0.2 in. H₂O 5,000 ft³/min @ 0 in. H₂O	Not Rated	Direct	1,725	1	1/3	20"	25 3/4"	25 3/4"	29 1/2"	40"	104	Plastic	No	Louvers	0000000	000000000