Lambro 4" Bath Fan Exhaust Through-the-Wall Vent Kit with Single Flap Vent, 8-Ft. UL 181 Foil Flex Duct, and 11" Aluminum Snap-Lock Tail Pipe, 481UL
Condition: New
Condition: New
This product is brand new, unused, and includes a full manufacturer warranty. Learn more
Warranty: 1 Year Warranty
Warranty: 1 Year Warranty
1 Year Warranty Learn more
Free Shipping on Orders $50+
Free Shipping on Orders $50+
Free shipping with orders over $50.00. 30-day returns. Learn more
The Lambro White Plastic Single-Flap Bath Fan Exhaust Vent Kit featuring a 4-in. x 8-ft. UL 181 flexible air connector is ideal for venting through the wall. This kit is used for bath fan exhaust and other general venting applications that require moist air and humidity to exit the home. The single flap allows for maximum airflow while reducing back flow of exhaust air. The vent can be painted to match your home’s trim color. Make sure to check local building codes before installation.
Features
- Kit includes 4-in. white plastic single flap vent, 4 in. x 11 in. aluminum snap-lock tail pipe, 4-in. x 8 ft. flexible UL® 181 Class 1 air connector, 3-in. to 4-in. plastic increaser (optional use), and two 4-in. metal spring clamps
- Recommended for bathroom fan venting
- Not for use with clothes dryer venting
- Opening/closing flap prevents outside elements from entering the vent
- Foil flex duct has a maximum operating temperature of 250°F
- UV inhibitor is used to help prevent the premature fading of vent
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What does "certified refurbished" actually mean?
What does "certified refurbished" actually mean?
A refurbished product is one that was returned and then restored to as close to like-new as possible—including replacement parts and updated software where needed. Every refurbished product we sell is certified, meaning it's been restored by the manufacturer or an authorized partner and tested to original standards. Want the full breakdown? Read Refurbished, Renewed, Used… What's the Difference?
Are all refurbished items in equally good condition?
Are all refurbished items in equally good condition?
Yes. Every refurbished refurbished product is cleaned and tested to come as close to like-new as possible. We also carry new condition products which are unopened and brand new!
Do your products come with a warranty?
Do your products come with a warranty?
They do. Every refurbished product is backed by our 12-Month Refurb Warranty, and many new products carry longer coverage—1–2 years, and in some cases a Lifetime Warranty. Need specifics on your item? Contact us and we'll help.
Do you accept returns?
Do you accept returns?
You can return most items within 30 days of delivery for a full refund. Items may be opened and inspected and still qualify, as long as they're returned in the same condition you received them and include all original accessories.
Do I have to pay for return shipping?
If the return is due to our error—such as an incorrect or defective item—we cover the return shipping cost.
When will I get my refund?
Refunds are typically issued within 5–14 business days after we receive your returned item.




