Back of 70 CFM motor kit with plug-in install.
This motor kit will vent spaces from 65 - 85 sq. ft. and has a quick and easy install into a contractor series bath fan.
Front of 60 CFM motor kit for contractor series bath fans.
Side view of motor kit showing the impeller design.

70 CFM Motor Kit for Contractor Series Bath Fans

Regular price$38.99
Shipping calculated at checkout.

  • Free shipping within the contiguous United States
  • In stock, ready to ship
  • Inventory on the way
Perfect for:
  • Commercial

  • Home

This motor kit includes the motor plate, permanently lubricated plug-in motor, and impeller with hardware for install. Our motor kits are interchangeable for Maxx Air, NuVent, and QuFresh contractor series bath fans, making an upgrade from a 50 CFM to a 70 CFM model easy with the purchase of this kit.

For use only with Maxx Air, NuVent, and QuFresh ceiling/wall exhaust bathroom fans. This motor kit is compatible with fan models NX703, NX703B, NX704, NX704B.


Designed for ventilating bathrooms up to 65 sq. ft. and other rooms up to  85 sq. ft.


Easy installation with common household tools. No wiring necessary.


Removable blower with easy slide-in mounting

Primary Color

Black or Blue

Secondary Color




Unit Weight

3 lbs.

Box Dimensions

13 in. H x 13 in. W x 13 in. D

Alias SKU(s)

NX70K : 70 CFM kit

Single Product UPC


Sold Under

Maxx Air, NuVent, QuFresh

Our products are shipped via Fedex Ground or LTL Carrier depending on the size and weight of the product. Should you have a special requirement for shipping please contact us at or call us to discuss your requirements. You can use the Freight Estimator in the Shopping Cart to determine what the freight cost will be on your item. Freight will be billed at the time of shipment. Due to the nature of the products, we cannot ship via Express or overnight service. Typically orders ship within 5 business days. Upon shipment you will be sent a notification of shipment with the Tracking Number. We reserve the right to recall a shipment for any reason.

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