50 CFM non-lighted Contractor Series bath fan with 3 in. duct collar.
Exploded view of the utility fan with the grille pulled away from the main housing.
Features of the NX503 include 50 CFM operation, safe for installation over showers, and easy installation.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
Close-up of 50 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX503 showing the steel housing, 3 in. duct collar and plastic grille cover.
Front view of the bath fan with the 3 in. duct collar for installation.
Top view of the bath exhaust fan showing the stylish decorative grille design.
70 CFM non-lighted Contractor Series bath fan with 3 in. duct.
Exploded view of the utility fan with the grille pulled away from the main housing.
Features of the NX703 include 60 CFM operation, safe for installation over showers, and easy installation.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
Close-up of 70 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX703 showing the steel housing, 3 in. duct collar and plastic grille cover.
Front view of the bath fan with the 3 in. duct collar for installation.
Top view of the bath exhaust fan showing the stylish decorative grille design.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
Top view of the bath exhaust fan showing the stylish decorative grille design.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
50 CFM non-lighted Contractor Series bath fan with 4 in. duct collar.
Exploded view of the utility fan with the grille pulled away from the main housing.
Features of the NX504 include 50 CFM operation, safe for installation over showers, and easy installation.
Close-up of 50 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX504 showing the steel housing, 4 in. duct collar and plastic grille cover.
70 CFM non-lighted Contractor Series bath fan with 4 in. duct collar.
Features of the NX704 include 60 CFM operation, safe for installation over showers, and easy installation.
Exploded view of the utility fan with the grille pulled away from the main housing.
Front view of the bath fan with the 4 in. duct collar for installation.
Close-up of 70 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX704 showing the steel housing, 4 in. duct collar and plastic grille cover.
Front view of the bath fan with the 4 in. duct collar for installation.
Top view of the bath exhaust fan showing the stylish decorative grille design.
50 CFM non-lighted Contractor Series bath fan with 3 in. duct collar.
Exploded view of the utility fan with the grille pulled away from the main housing.
Features of the NX503 include 50 CFM operation, safe for installation over showers, and easy installation.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
Close-up of 50 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX503 showing the steel housing, 3 in. duct collar and plastic grille cover.
Front view of the bath fan with the 3 in. duct collar for installation.
Top view of the bath exhaust fan showing the stylish decorative grille design.
70 CFM non-lighted Contractor Series bath fan with 3 in. duct.
Exploded view of the utility fan with the grille pulled away from the main housing.
Features of the NX703 include 60 CFM operation, safe for installation over showers, and easy installation.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
Close-up of 70 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX703 showing the steel housing, 3 in. duct collar and plastic grille cover.
Front view of the bath fan with the 3 in. duct collar for installation.
Top view of the bath exhaust fan showing the stylish decorative grille design.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
Top view of the bath exhaust fan showing the stylish decorative grille design.
Dimensional drawing showing the bathroom exhaust fan housing and grille specs.
50 CFM non-lighted Contractor Series bath fan with 4 in. duct collar.
Exploded view of the utility fan with the grille pulled away from the main housing.
Features of the NX504 include 50 CFM operation, safe for installation over showers, and easy installation.
Close-up of 50 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX504 showing the steel housing, 4 in. duct collar and plastic grille cover.
70 CFM non-lighted Contractor Series bath fan with 4 in. duct collar.
Features of the NX704 include 60 CFM operation, safe for installation over showers, and easy installation.
Exploded view of the utility fan with the grille pulled away from the main housing.
Front view of the bath fan with the 4 in. duct collar for installation.
Close-up of 70 CFM motor kit, grille construction, and keyhole mounting tabs.
Left side profile view of the NX704 showing the steel housing, 4 in. duct collar and plastic grille cover.
Front view of the bath fan with the 4 in. duct collar for installation.
Top view of the bath exhaust fan showing the stylish decorative grille design.

Contractor Series Ceiling/Wall Exhaust Bath Fans

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DESCRIPTION:

Our Contractor's Choice Fans are the perfect pick for a residential bathroom, powder room and utility or laundry room, offering contemporary style while efficiently reducing moisture, helping to prevent mildew, and ventilating odors from your space. Constructed of durable galvanized steel and paired with a textured polymeric grille with curved openings for maximum ventilation potential. This exhaust fan has flexible install options as a side wall or ceiling mount model and features a large removable wiring compartment and blower assembly for easy setup as a replacement bathroom fan or in new construction or in a home improvement project. Our Contractor Series ventilation fans have interchangeable motor kits and are compatible with radiation damper additions to meet local codes for heat and fire protection.

PERFECT FOR:
  • Commercial

  • Home

  • PREVENTS MOISTURE
    BUILD-UP IN BATHROOMS 

  • INTERCHANGEABLE MOTOR
    KIT FOR EASY UPGRADES

  • MOUNTING TABS & REMOVABLE
    WIRING COMPARTMENT FOR EASY INSTALL

  • GALVANIZED STEEL HOUSING WITH
    PERMANENTLY LUBRICATED MOTOR

Circulation:

Designed for ventilating bathrooms from 45 - 65 sq. ft. and other rooms from 60 - 85 sq. ft.

Installation:

Mounts directly to joist with mounting tabs. Accomodates side wall or ceiling installations. 3 or 4 in. duct models. 

Controls:

Large curved grille for efficient airflow that covers more rough-in area

Material:

Heavy gauge steel housing with 3 or 4 in. round extended duct collars

Safety:

UL Listed and approved for use over tub/shower enclosures when installed in a GFCI protected branch circuit

Primary Color

White

Secondary Color

Mill

CFM

50 or 60

Material Details

.024 Steel Housing, Textured Polymeric Grille

Motor Details

Permanently Lubricated, Plug-In

Motor Specs
ModelAmpsVolts, HzWattsSones
50 CFM0.90120, 6044.04.0
60 CFM1.80120, 6055.06.5
Dimensions

3.75 in. H x 10.25 in. W x 10.25 in. D (Grille Size and Housing Depth)

Unit Weight

4 lbs.

Box Dimensions

5.5 in. x 11.5 in. x 10 in.

13 in. x 13 in. x 13 in. (UPS)

Alias SKU(s)

NX503 | MC503: 50 CFM, 3 in. Duct 

NX504 | MC504: 50 CFM, 4 in. Duct 

NX703 | MC703: 60 CFM, 3 in. Duct 

NX704 | MC704: 60 CFM, 4 in. Duct

Multi UPC Info

MC503: 697453939843

MC504: 697453939850

MC703: 697453939867

MC704: 697453939874

NX503: 697453501002 ; 697453503525 (UPS)

NX504: 047242580723  

NX703: 697453504003 ; 697453505017 (UPS)

NX704: 047242580730

Country of Origin - Assembly

US from Domestic and Imported Components

Sold Under

Maxx Air, NuVent, QuFresh

EASY UPGRADES

Find that your 50 CFM unit is not cutting it? No need to uninstall the whole unit; our Contractor Series features interchangeable motor kits, making upgrades simple and easy with their plug-in motors. 

PERFECT FOR NEW CONSTRUCTION

Contractor series units can be installed in a 2-phase system—the housing can be mounted with wiring and duct in one phase, and the blower and grille installed in a later second phase once the ceiling is complete. Keyhole mounting tabs, removable wiring compartments, and removable blowers with plug-in motors make setup quick and easy. 

CREATE A HEALTHY HOME

A warm shower is great, but all that unventilated steam and moisture can set up your bathroom for mold and mildew (and the damaging after-effects of removing it). Installing a Contractor Series bath fan aids in removing this moisture in bathrooms ranging from 45 - 65 sq. ft.