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Whole House Attic Fan Replacement Ceiling Louvers

Also Replacement Wall Mount Intake and Exhaust Shutters (See Below)

Whole House Fan Premium Replacement Ceiling Shutters - NOTE: the louvers run the length dimension

Whole House Fan Premium Replacement Ceiling Truss Style Shutters - NOTE: the louvers run the length dimension

Whole House Fan Premium Replacement Interior Intake Wall Shutters (interior Wall mount)

Premium Aluminum Replacement Exhaust Shutters, Exterior Gable End Wall Mount, Front Flange (Flush Mount)

Premium Replacement Exhaust Shutters, Exterior Gable End Wall Mount, Aluminum, Front Flange

Premium Aluminum Replacement Exhaust Shutters, Exterior Gable End Wall Mount, Rear Flange

Premium Replacement Exhaust Shutters, Exterior Gable End Wall Mount, Aluminum, Rear Flange

Whole House Attic Fan Replacement Shutters

We offer 17 sizes of replacement whole house ceiling fan shutters.

Note - all blades run parallel to the Length dimension.

Please match up the shutter as close as possible to the overall size or rough opening size. The overall size of the shutter includes the mounting flanges.

Please note that you may need to go slightly larger or slightly smaller. If you go slightly smaller any gaps can be covered with wood trim.

If you have any questions or need any assistance please do not hesitate to call us at 508.320.9082. We will do her best to help you!

These are the highest quality, white powder coat painted aluminum frames and louvers.

Also Available: Whole House Attic Fan Covers

Ceiling Fan Shutter, 24 In., #3C510: $129.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 24 In, Opening Required 24 L x 30 W In, Length 26 In, Width 32 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 24 In Whole House Fans

Item	Ceiling Truss Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	24
Opening Required (In.)	24 L x 30 W
Length (In.)	26
Width (In.)	32
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	24" Whole House Fans

Ceiling Fan Shutter, 24 In., #3HHR6: $169.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 24 In, Opening Required 30 L x 24 W In, Length 32 In, Width 26 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Item	Truss Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	24
Opening Required (In.)	30 L x 24 W
Length (In.)	32
Width (In.)	26
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 24 In., #4C224: $149.99

Premium Ceiling Shutter, Gravity Operated, Single Panel, Fits Fan Dia 24 In, Opening Required 24 L x 24 W In, Length 26 In, Width 26 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 24 In Whole House Fans

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	24
Opening Required (In.)	24 L x 24 W
Length (In.)	26
Width (In.)	26
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	24" Whole House Fans

Ceiling Fan Shutter, 24 In., #4HA10: $149.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 24 In, Opening Required 28 3/4 L x 27 11/16 W In, Length 30 3/4 In, Width 29 11/16 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	24
Opening Required (In.)	29 L x 27 3/4 W
Length (In.)	30 3/4
Width (In.)	29 11/16
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Free Area (Square-Ft.)	4.425
Max. Velocity (FPM)	2250
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 30 In., #4HA11: $149.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 30 In, Opening Required 28 3/4 L x 33 7/8 W In, Length 30 3/4 In, Width 35 7/8 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod.

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	30
Opening Required (In.)	29 L x 34 1/4 W
Length (In.)	30 3/4
Width (In.)	35 7/8
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Free Area (Square-Ft.)	5.435
Max. Velocity (FPM)	2250
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 30 In., #4C225: $169.99

Premium Ceiling Shutter, Gravity Operated, Single Panel, Fits Fan Dia 30 In, Opening Required 30 L x 30 W In, Length 32 In, Width 32 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 30 In Whole House Fans

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	30
Opening Required (In.)	30 L x 30 W
Length (In.)	32
Width (In.)	32
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Free Area (Square-Ft.)	4.652
Max. Velocity (FPM)	2250
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	30" Whole House Fans

Ceiling Fan Shutter, 30 In., #3C511: $149.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 30 In, Opening Required 30 L x 30 W In, Length 32 In, Width 32 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 30 In Whole House Fans

Item	Ceiling Truss Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	30
Opening Required (In.)	30 L x 30 W
Length (In.)	32
Width (In.)	32
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	30" Whole House Fans

Ceiling Fan Shutter, 30 In., #3HHR7: $219.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 30 In, Opening Required 33 L x 30 W In, Length 35 In, Width 32 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Item	Truss Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	30
Opening Required (In.)	33 L x 30 W
Length (In.)	35
Width (In.)	32
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 30 In., #3HHR4: $189.99

Ceiling Shutter, Gravity Operated, Single Panel, Fits Fan Dia 30 In, Opening Required 34 L x 34 W In, Length 36 In, Width 36 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	30
Opening Required (In.)	34 L x 34 W
Length (In.)	36
Width (In.)	36
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 36 In., #4C228: $219.99

Premium Ceiling Shutter, Gravity Operated, Single Panel, Fits Fan Dia 36 In, Opening Required 36 L x 36 W In, Length 38 In, Width 38 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 36 In Whole House Fans

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	36
Opening Required (In.)	36 L x 36 W
Length (In.)	38
Width (In.)	38
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	36" Whole House Fans

Ceiling Fan Shutter, 36 In., #3HHR5: $249.99

Premium Ceiling Shutter, Gravity Operated, Single Panel, Fits Fan Dia 36 In, Opening Required 33 L x 38 W In, Length 35 In, Width 40 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	36
Opening Required (In.)	33 L x 38 W
Length (In.)	35
Width (In.)	40
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 36 In., #4HA12: $159.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 36 In, Opening Required 35 3/4 L x 34 W In, Length 37 3/4 In, Width 36 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod.

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	36
Opening Required (In.)	36 L x 34 1/4 W
Length (In.)	38 3/8
Width (In.)	35 7/8
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

*Ceiling Fan Shutter, 36 In., #3C512: $149.99***

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 36 In, Opening Required 34 L x 30 W In, Length 36 In, Width 32 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 36 In Whole House Fans. (BLADES ARE 34" LONG).

Item	Ceiling Truss Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	36
Opening Required (In.)	34 L x 30 W
Length (In.)	36
Width (In.)	32
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	36" Whole House Fans

Ceiling Fan Shutter, 42 In., #3HHR8: $319.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 42 In, Opening Required 40 L x 38 W, Length 42 In, Width 40 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Item	Truss Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	42
Opening Required (In.)	40 L x 38 W
Length (In.)	42
Width (In.)	40
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 42 In., #3HHR9: $289.99

Ceiling Truss Shutter, Gravity Operated, Single Panel, Fits Fan Dia 24 In, Opening Required 41 L x 30 W, Length 43 In, Width 32 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Item	Truss Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	42
Opening Required (In.)	41 L x 30 W
Length (In.)	43
Width (In.)	32
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod

Ceiling Fan Shutter, 42 In., #3C242: $319.99

Premium Ceiling Shutter, Gravity Operated, Single Panel, Fits Fan Dia 42 In, Opening Required 42 L x 42 W In, Length 44 In, Width 44 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 42 In Whole House Fans

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	42
Opening Required (In.)	42 L x 42 W
Length (In.)	44
Width (In.)	44
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	42" Whole House Fans

Ceiling Fan Shutter, 48 In., #3C243: $419.99

Premium Ceiling Shutter, Gravity Operated, Single Panel, Fits Fan Dia 48 In, Opening Required 48 L x 48 W In, Length 50 In, Width 50 In, Frame Depth 1 19/32 In, Open Depth 5 1/4 In, Flange Width 1 1/2 In, Horizontal Mounting Position, Blade Material White Painted Aluminum, Extruded Aluminum Frame and G-90 Galvanized Tie Rod, For Use With 48 In Whole House Fans

Item	Premium Ceiling Shutter
Type	Gravity Operated, Single Panel
Fits Fan Dia. (In.)	48
Opening Required (In.)	48 L x 48 W
Length (In.)	50
Width (In.)	50
Frame Depth (In.)	1 19/32
Open Depth (In.)	5 1/4
Flange Width (In.)	1 1/2
Mounting Hole Size (In.)	3/16
Mounting Position	Horizontal
Blade Material	White Painted Aluminum
Construction Material	Extruded Aluminum Frame and G-90 Galvanized Tie Rod
For Use With	48" Whole House Fans

Aluminum Interior Wall Mount Intake Shutters (for whole house fans mounted in Walls)

Intake Supply Shutters, Interior Wall Mount, Gravity Operated, mill finish aluminum (can be painted to match wall color), Single Panel. Efficient shutters are designed to prevent air backflow when the fan is off. Counterbalanced louvers open easily and seal quietly for smooth, quiet operation. Intake only. Mounts vertical to interior wall. Frame Depth 1 19/32 In, Open Depth 6 In, Flange Width 1 1/2 In. Blade Material Mill Finish Aluminum, Extruded Aluminum Frame and G-90 Glavanized Tie Rod.

Model 4YN17 Fits Fan Dia 24 In, Overall Square 26 3/4 In, Opening Required 25 x 25 In, $199.99

Model 3HHT1 Fits Fan Dia 30 In, Overall Square 32 3/4 In, Opening Required 31 x 31 In, $269.99

Model 4YN18 Fits Fan Dia 36 In, Overall Square 38 3/4 In, Opening Required 37 x 37 In, $319.99

Model 3HHT2 Fits Fan Dia 42 In, Overall Square 44 3/4 In, Opening Required 43 x 43 In, $449.99

Model 4YN19 Fits Fan Dia 48 In, Overall Square 50 3/4 In, Opening Required 49 x 49 In, $549.99
Aluminum Exterior Gable End Wall Mount Exhaust Shutters, Front Mount Flange (for Flush Mount)

Exhaust Shutters, Exterior Gable End Wall Mount, Gravity Operated, Aluminum, Front Mount Flange. Efficient shutters for exhaust fans are designed to prevent air backflow when the fan is off. Counterbalanced louvers open easily and seal quietly for smooth, quiet operation. Exhaust only. Mounts vertical. Frame Depth 3 In, Open Depth 6 In, Flange Width 1 1/2 In. Max Velocity 2500 FPM. Heavy-duty 3"-deep extruded aluminum frame, mill finish aluminum blades with stainless steel rivets and pivot pins. Galvanized steel tie rod and reinforcement strip opens easily and minimizes load on the fan.

Model 3HHN4 Fits Fan Dia 10 In, Overall Square 13 In, Opening Required 10 1/2 x 10 1/2 In, Free Area 0.645 Square-Ft. $69.99

Model 3HHN5 Fits Fan Dia 12 In, Overall Square 15 In, Opening Required 12 1/2 x 12 1/2 In, Free Area 0.786 Square-Ft. $79.99

Model 3HHN6 Fits Fan Dia 16 In, Overall Square 19 In, Opening Required 16 1/2 x 16 1/2 In, Free Area 1.436 Square-Ft. $99.99

Model 3HHN7 Fits Fan Dia 18 In, Overall Square 21 In, Opening Required 18 1/2 x 18 1/2 In, Free Area 2.043 Square-Ft. $109.99

Model 3HHN8 Fits Fan Dia 20 In, Overall Square 23 In, Opening Required 20 1/2 x 20 1/2 In, Free Area 2.281 Square-Ft. $124.99

Model 2FTW6 Fits Fan Dia 24 In, Overall Square 27 In, Opening Required 24 1/2 x 24 1/2 In, Free Area 3.320 Square-Ft. $149.99

Model 2FTX1 Fits Fan Dia 30 In, Overall Square 33 In, Opening Required 30 1/2 x 30 1/2 In, Free Area 5.452 Square-Ft. $169.99

Model 3HHN9 Fits Fan Dia 36 In, Overall Square 39 In, Opening Required 36 1/2 x 36 1/2 In, Free Area 7.071 Square-Ft. $259.99

Model 2FTX3 Fits Fan Dia 48 In, Overall Square 51 In, Double Panel, Opening Required 48 1/2 x 48 1/2 In, Free Area 12.924 Square-Ft. $399.99
Aluminum Exterior Wall Mount Exhaust Shutters, Rear Mount Flange

Exhaust Shutters, Exterior Gable End Wall Mount, Gravity Operated, Aluminum, Rear Mount Flange. Efficient shutters for exhaust fans are designed to prevent air backflow when the fan is off. Counterbalanced louvers open easily and seal quietly for smooth, quiet operation. Exhaust only. Mounts vertical. Frame Depth 3 In, Open Depth 6 In, Flange Width 1 1/2 In. Max Velocity 3000 FPM. Heavy-duty 3"-deep mill finish extruded aluminum frame, mill finish extruded aluminum blades, and stainless steel tie rods and fasteners provide strength, durability, and long-lasting corrosion resistance. Prepunched mounting holes; installation hardware not included.

Model 4FZH3 Fits Fan Dia 12 In, Overall Square 15 In, Opening Required 12 1/2 x 12 1/2 In, Free Area 0.786 Square-Ft. $99.99

Model 4FZH4 Fits Fan Dia 16 In, Overall Square 19 In, Opening Required 16 1/2 x 16 1/2 In, Free Area 1.436 Square-Ft. $149.99

Model 4FZH5 Fits Fan Dia 18 In, Overall Square 21 In, Opening Required 18 1/2 x 18 1/2 In, Free Area 2.043 Square-Ft. $159.99

Model 4FZH6 Fits Fan Dia 20 In, Overall Square 23 In, Opening Required 20 1/2 x 20 1/2 In, Free Area 2.281 Square-Ft. $179.99

Model 4FZH7 Fits Fan Dia 24 In, Overall Square 27 In, Opening Required 24 1/2 x 24 1/2 In, Free Area 3.32 Square-Ft. $199.99

Model 4FZH8 Fits Fan Dia 30 In, Overall Square 33 In, Opening Required 30 1/2 x 30 1/2 In, Free Area 5.452 Square-Ft. $249.99

Model 4FZH9 Fits Fan Dia 36 In, Overall Square 39 In, Opening Required 36 1/2 x 36 1/2 In, Free Area 7.436 Square-Ft. $329.99