HVAC and Refrigeration
Ventilation Equipment
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Grainger Brands and Products (21)

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Brand

4 WAY DIFFUSER 4 WAY DIFFUSER (6)
AMERICAN LOUVER AMERICAN LOUVER (3)
APPROVED VENDOR APPROVED VENDOR (21)
NORSEMAN NORSEMAN (3)

Price

$10 - $15 $10 - $15 (2)
$20 - $25 $20 - $25 (1)
$25 - $30 $25 - $30 (1)
$30 - $35 $30 - $35 (1)
$35 - $40 $35 - $40 (1)
$40 - $50 $40 - $50 (2)
$50 - $60 (1)

$60 - $70 (6)

$70 - $80 (2)

$80 - $90 (2)

$90 - $100 (1)

$100 - $200 (1)
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Face Type

3-Way Louvered 3-Way Louvered (3)
4-Way Louvered 4-Way Louvered (3)
Perforated Perforated (3)
Round Cone Round Cone (3)
Square Cone Square Cone (9)

Material

Aluminum Aluminum (6)
Steel Steel (15)

Mounting Style

Lay-In Lay-In (8)
Surface Mount Surface Mount (13)

Overall Height

9 in 9 in (2)
11 in 11 in (2)
13 in 13 in (2)
23 5/8 in 23 5/8 in (1)
23 3/4 in 23 3/4 in (11)

Overall Width

9 in 9 in (2)
11 in 11 in (2)
13 in 13 in (2)
23 5/8 in 23 5/8 in (1)
23 3/4 in 23 3/4 in (11)

Overall Depth

1 1/8 in 1 1/8 in (3)
2 1/4 in 2 1/4 in (6)
3 1/2 in 3 1/2 in (2)
4 1/2 in 4 1/2 in (4)
5 1/2 in 5 1/2 in (6)

Overall Diameter

8 1/2 in 8 1/2 in (1)
10 1/2 in 10 1/2 in (1)
14 in 14 in (1)

Duct Size

6 in 6 in (5)
6 to 12 in 6 to 12 in (1)
6 to 14 in 6 to 14 in (1)
8 in 8 in (6)
10 in 10 in (6)
12 in 12 in (2)

Air Diffusion Angle

270 Degrees 270 Degrees (3)
360 Degrees 360 Degrees (18)

Mounting Location

Ceiling Ceiling (10)
Ceiling, Wall Ceiling, Wall (11)

Insulated

Insulated Insulated (1)
Not Insulated Not Insulated (20)

Diffusers

HVAC diffusers install onto the ends of ducts and help spread conditioned air throughout a room. Some diffusers feature vents that create smooth airflow that travels along walls and ceilings before mixing with the interior air. Other diffusers use an array of small openings to disperse and mix the conditioned air into the interior space. This lowers the number of vents needed to regulate air quality and reduces the parts and labor to install them. Diffusers can be square or round, depending on the desired interior appearance.

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DIFFUSER, CEILING/WALL, 11X11 IN, SURFACE MOUNT, 8 IN DUCT, ALUMINUM, 3-WAY LOUVERED, WHITE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 11X11 IN, SURFACE MOUNT, 8 IN DUCT, ALUMINUM, 3-WAY LOUVERED, WHITE
Item # GGE4MJJ3
Mfr. Model # 4MJJ3

EHC: EHC :

This diffuser includes screws, and is made of aluminum. It is white, measures 11 inch width, 11 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

This diffuser includes screws, and is made of aluminum. It is white, measures 11 inch width, 11 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $38.83 / EACH

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DIFFUSER, CEILING/WALL, 11X11 IN, SURFACE MOUNT, 8 IN DUCT, ALUMINUM, 4-WAY LOUVERED, WHITE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 11X11 IN, SURFACE MOUNT, 8 IN DUCT, ALUMINUM, 4-WAY LOUVERED, WHITE
Item # GGE4MJJ6
Mfr. Model # 4MJJ6

EHC: EHC :

This diffuser includes screws, and is made of aluminum. It is white, measures 11 inch width, 11 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

This diffuser includes screws, and is made of aluminum. It is white, measures 11 inch width, 11 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $34.75 / EACH

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DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 6 IN DUCT, STEEL, SQUARE CONE, WHITE

APPROVED VENDOR
DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 6 IN DUCT, STEEL, SQUARE CONE, WHITE
Item # GGE4MJV2
Mfr. Model # 4MJV2

EHC: EHC :

Diffuser, Square Ceiling 2-Cone, Air Diffusion Pattern 360 Degrees , Steel Construction, White, Duct Size 6", Height 4-1/2", Width 23-3/4", Depth 23-3/4", For Use With Stock Number, GGE4JRL7

Diffuser, Square Ceiling 2-Cone, Air Diffusion Pattern 360 Degrees , Steel Construction, White, Duct Size 6", Height 4-1/2", Width 23-3/4", Depth 23-3/4", For Use With Stock Number, GGE4JRL7

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $66.15 / EACH

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DIFFUSER, CEILING/WALL, 14 IN DIA, SURFACE MOUNT, 10 IN DUCT, STEEL, ROUND CONE, WHITE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 14 IN DIA, SURFACE MOUNT, 10 IN DUCT, STEEL, ROUND CONE, WHITE
Item # GGE4JRL1
Mfr. Model # 4JRL1

EHC: EHC :

This diffuser includes screws, and is made of steel. It is white, 1⅛ inch depth. This diffuser is compatible with Steel Round Butterfly damper, is ceiling/wall mountable, a powder coated finish, and 14 inch diameter.

This diffuser includes screws, and is made of steel. It is white, 1⅛ inch depth. This diffuser is compatible with Steel Round Butterfly damper, is ceiling/wall mountable, a powder coated finish, and 14 inch diameter.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $22.08 / EACH

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DIFFUSER, CEILING/WALL, 23¾ IN H, 23¾ IN W, SURFACE MOUNT, 6 TO 12 IN DUCT, STEEL, SQUARE CONE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 23¾ IN H, 23¾ IN W, SURFACE MOUNT, 6 TO 12 IN DUCT, STEEL, SQUARE CONE
Item # GGE4JRL3
Mfr. Model # 4JRL3

EHC: EHC :

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 3½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling/wall mountable, a powder coated finish.

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 3½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling/wall mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $72.29 / EACH

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DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, SURFACE MOUNT, 10 IN DUCT, STEEL, PERFORATED, WHITE

APPROVED VENDOR
DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, SURFACE MOUNT, 10 IN DUCT, STEEL, PERFORATED, WHITE
Item # GGE4MJU9
Mfr. Model # 4MJU9

EHC: EHC :

Diffuser, Perforated Supply, Lay-In T-Bar, Air Diffusion Pattern 360 Degrees , Steel Construction, White, Duct Size 10", Height 5-7/16", Width 23-3/4", Depth 23-3/4"

Diffuser, Perforated Supply, Lay-In T-Bar, Air Diffusion Pattern 360 Degrees , Steel Construction, White, Duct Size 10", Height 5-7/16", Width 23-3/4", Depth 23-3/4"

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $93.90 / EACH

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DIFFUSER, CEILING/WALL, 13X13 IN, SURFACE MOUNT, 10 IN DUCT, ALUMINUM, 3-WAY LOUVERED, WHITE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 13X13 IN, SURFACE MOUNT, 10 IN DUCT, ALUMINUM, 3-WAY LOUVERED, WHITE
Item # GGE4MJJ4
Mfr. Model # 4MJJ4

EHC: EHC :

This diffuser includes screws, and is made of aluminum. It is white, measures 13 inch width, 13 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

This diffuser includes screws, and is made of aluminum. It is white, measures 13 inch width, 13 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $45.24 / EACH

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DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 10 IN DUCT, STEEL, SQUARE CONE, WHITE

APPROVED VENDOR
DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 10 IN DUCT, STEEL, SQUARE CONE, WHITE
Item # GGE4MJU4
Mfr. Model # 4MJU4

EHC: EHC :

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 5½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 5½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $66.53 / EACH

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DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 8 IN DUCT, STEEL, SQUARE CONE, WHITE

APPROVED VENDOR
DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 8 IN DUCT, STEEL, SQUARE CONE, WHITE
Item # GGE4MJV3
Mfr. Model # 4MJV3

EHC: EHC :

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 4½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 4½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $76.68 / EACH

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DIFFUSER, CEILING/WALL, 8½ IN DIAMETER, SURFACE MOUNT, 6 IN DUCT, STEEL, ROUND CONE, WHITE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 8½ IN DIAMETER, SURFACE MOUNT, 6 IN DUCT, STEEL, ROUND CONE, WHITE
Item # GGE4JRK8
Mfr. Model # 4JRK8

EHC: EHC :

This diffuser includes screws, and is made of steel. It is white, 1⅛ inch depth. This diffuser is compatible with Steel Round Butterfly damper, is ceiling/wall mountable, a powder coated finish, and 8½ inch diameter.

This diffuser includes screws, and is made of steel. It is white, 1⅛ inch depth. This diffuser is compatible with Steel Round Butterfly damper, is ceiling/wall mountable, a powder coated finish, and 8½ inch diameter.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $10.90 / EACH

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APPROVED VENDOR
DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 8 IN DUCT, STEEL, SQUARE CONE, WHITE
Item # GGE4MJU3
Mfr. Model # 4MJU3

EHC: EHC :

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 5½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 5½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $68.81 / EACH

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DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 12 IN DUCT, STEEL, SQUARE CONE, WHITE

APPROVED VENDOR
DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, LAY-IN, 12 IN DUCT, STEEL, SQUARE CONE, WHITE
Item # GGE4MJU5
Mfr. Model # 4MJU5

EHC: EHC :

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 5½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

This diffuser includes collar, and is made of steel. It is white, measures 23¾ inch width, 23¾ inch height, 5½ inch depth. This diffuser is compatible with T-Bar Suspended Drop Ceilings, is ceiling mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $68.81 / EACH

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DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, SURFACE MOUNT, 8 IN DUCT, STEEL, PERFORATED, WHITE

APPROVED VENDOR
DIFFUSER, CEILING, 23¾ IN H, 23¾ IN W, SURFACE MOUNT, 8 IN DUCT, STEEL, PERFORATED, WHITE
Item # GGE4MJU8
Mfr. Model # 4MJU8

EHC: EHC :

Diffuser, Perforated Supply, Lay-In T-Bar, Air Diffusion Pattern 360 Deg., Steel Construction, White, Duct Size 8 In., Height 23.74 In., Width 23.74 In., Depth 5.43 In.

Diffuser, Perforated Supply, Lay-In T-Bar, Air Diffusion Pattern 360 Deg., Steel Construction, White, Duct Size 8 In., Height 23.74 In., Width 23.74 In., Depth 5.43 In.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $133.12 / EACH

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DIFFUSER, CEILING/WALL, 9 IN H, 9 IN W, SURFACE MOUNT, 6 IN DUCT, ALUMINUM, 3-WAY LOUVERED, WHITE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 9 IN H, 9 IN W, SURFACE MOUNT, 6 IN DUCT, ALUMINUM, 3-WAY LOUVERED, WHITE
Item # GGE4MJJ2
Mfr. Model # 4MJJ2

EHC: EHC :

This diffuser includes screws, and is made of aluminum. It is white, measures 9 inch width, 9 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

This diffuser includes screws, and is made of aluminum. It is white, measures 9 inch width, 9 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $29.73 / EACH

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DIFFUSER, CEILING/WALL, 23⅝ IN H, 23⅝ IN W, SURFACE MOUNT, 6 TO 14 IN DUCT, STEEL, PERFORATED

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 23⅝ IN H, 23⅝ IN W, SURFACE MOUNT, 6 TO 14 IN DUCT, STEEL, PERFORATED
Item # GGE4JRL2
Mfr. Model # 4JRL2

EHC: EHC :

White finish. Perforated diffuser has a clean, unbroken-plane look and reduce noise in low-volume air applications.

White finish. Perforated diffuser has a clean, unbroken-plane look and reduce noise in low-volume air applications.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $56.65 / EACH

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DIFFUSER, CEILING/WALL, 13X13 IN, SURFACE MOUNT, 10 IN DUCT, ALUMINUM, 4-WAY LOUVERED, WHITE

APPROVED VENDOR
DIFFUSER, CEILING/WALL, 13X13 IN, SURFACE MOUNT, 10 IN DUCT, ALUMINUM, 4-WAY LOUVERED, WHITE
Item # GGE4MJJ7
Mfr. Model # 4MJJ7

EHC: EHC :

This diffuser includes screws, and is made of aluminum. It is white, measures 13 inch width, 13 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

This diffuser includes screws, and is made of aluminum. It is white, measures 13 inch width, 13 inch height, 2¼ inch depth. This diffuser is ceiling/wall mountable, a powder coated finish.

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SDS Document Not Found

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CATALOGUE PAGE # 1978

Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price : $81.89 / EACH

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