4 inch Wall Exhaust Vent – Floating Damper (Retail) – Item #289W-R

A floating damper in the 4-inch wall exhaust dryer vent prevents outside elements and air from entering the vent when not in use. The floating damper opens and allows the exhaust air to exit the vent through the bottom openings.

Dryer Vent

The Lambro 4-inch wall exhaust vent is ideal for venting through the wall. The exhaust vent features a floating damper that prevents outside elements and air from entering the vent. The floating damper seals the vent opening when the clothes dryer or bath fan is not running because no exhaust air exits the vent. When the clothes dryer or bath fan operates, the exhaust air pressure pushes the floating damper to let the exhaust air escape from the vent.

You can easily use the exhaust vent for new and replacement installations over an existing 4-inch vent pipe. The vent frame comes with four screw holes to secure the vent and a caulk-friendly frame for completing the installation. The vent features an opening and closing cover that enables easy inspection and cleaning. Make sure to check the inside of the vent regularly to prevent lint build-up when using the vent to exhaust a clothes dryer.

The vent’s manufacturing material is high-impact polystyrene (HIPS) with a UV additive to prevent premature fading caused by sunlight. You need to prep the vent before painting; plastic paint is recommended for effectively painting the plastic vent.

Make sure to check local building codes before installation.

Product features and benefits:

  • Retail box
  • For new or replacement vent installations
  • Replaces traditional clothes dryer or bath fan wall vents
  • Mounts over existing 4 inch openings
  • Floating damper prevents outside elements from entering the vent
  • Made of HIPS (high impact polystyrene) material
  • Accessible screw installation holes – caulk-friendly frame
  • UV inhibitor is used to help prevent the premature fading of vent
  • Plastic vent is paintable when prepped before painting – plastic paint recommended
  • UV inhibitor is used to help prevent the premature fading of vent
  • Installation screws (not included)

Product Contains:
(1) 4 inch white plastic wall exhaust vent – floating damper

Do you need bulk pack for this item?
289W-6 (Bulk Pack)

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Item Number:
Pack Quantity:
Package Size:
34 x 8 3/8 x 12 5/8
Package Type:
Package Weight:
6.00 lbs.
0 3989980289 1


Wall Cap







Has Damper


Has Screen


Has Collar/Tail