---
product_id: 541750886
title: "PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack"
brand: "lancaster home products"
price: "€ 120.41"
currency: EUR
in_stock: true
reviews_count: 13
category: "Lancaster Home Products"
url: https://www.desertcart.gr/products/541750886-prevent-it-4-inch-soffit-vent-for-bathroom-exhaust-fans
store_origin: GR
region: Greece
---

# 95%+ air directed away Easy install with included screws Built-in damper blocks pests & drafts PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack

**Brand:** lancaster home products
**Price:** € 120.41
**Availability:** ✅ In Stock

## Summary

> 💨 Keep your home fresh & dry with the vent that works smarter, not harder!

## Quick Answers

- **What is this?** PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack by lancaster home products
- **How much does it cost?** € 120.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/541750886-prevent-it-4-inch-soffit-vent-for-bathroom-exhaust-fans)

## Best For

- lancaster home products enthusiasts

## Why This Product

- Trusted lancaster home products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hassle-Free Setup:** Quick installation with included screws and removable screen for effortless maintenance.
- • **Pest & Draft Barrier:** Integrated damper stops bugs and backdrafts, keeping your home sealed and comfortable.
- • **Patented Moisture Defense:** Only soffit vent that directs moist air away from soffit, preventing costly water & roof damage.
- • **Durable Weather-Resistant Build:** Made from resilient resin plastic, designed to withstand all weather, proudly crafted in the USA.
- • **Scientifically Proven Efficiency:** Channels over 95% of bathroom exhaust air outward, optimizing indoor air quality and energy savings.

## Overview

The PreVent-It 4 Inch Soffit Vent is a patented, high-performance bathroom exhaust vent designed to direct over 95% of moist air away from your home's soffit, preventing moisture damage and improving indoor air quality. Featuring a built-in damper to block pests and drafts, it supports exhaust fans up to 110 CFM and offers easy installation with included hardware. Made from durable, weather-resistant resin plastic and proudly manufactured in the USA, this vent ensures long-lasting protection and energy efficiency for modern homes.

## Description

PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack | Only under eave vent that prevents moist air re-entry; easy to install; damper keeps pests and drafts out; Made in USA - desertcart.com

Review: A good choice. - A well made and sturdy vent. Build in baffle prevents drafts from entering. Looks good and functions perfectly. Very easy to install. The unit is a little large but I had the room for it. Ended up looking great. Very pleased.
Review: Glad I found this! - Works great to push the air away from soffit. Matches my black soffit. easy to install. I have a 2 ft overhang, so this works and if ice icicles do form, there is room so it doesn't block the vent

## Features

- Patented Design Better Protects Your Home: Only soffit vent built to direct moist bathroom exhaust air away from the soffit, not under it. This prevents several issues, including water and roof damage, increased moisture resulting in higher heating and air conditioning costs, and indoor air quality issues that can impact health.
- Scientifically Proven Performance: Directs 95%+ of exhausted air away from the home, ensuring maximum effectiveness in moisture removal and better protecting your family's wellness and home health compared to less effective, cheap soffit vents.
- No Bugs or Backdrafts: Damper helps prevent pests and outside air from entering the home, while the small front grille openings increase air speed to direct moisture past the soffit edge. Note: For bathroom exhaust fans up to 110 CFM only; do not use for dryer venting. Higher-CFM fans may experience increased noise and restricted airflow.
- Easy Installation and Maintenance: Simple to install and easy to clean via removable screen; fits a 4-inch vent hose and comes with 4 screws for secure mounting.
- Durable Weather-Resistant Construction: Made from durable resin plastic that withstands various weather conditions; Proudly made in the USA.
- Compatibility: Designed specifically for bathroom exhaust fans up to 110 CFM using 4 inch ductwork, ensuring proper airflow and ventilation performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C94LSV37 |
| Air Flow Capacity | 110 cfm |
| Best Sellers Rank | #26,587 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Soffit Vents |
| Blade Material | Plastic |
| Brand | Lancaster Home Products |
| Brand Name | Lancaster Home Products |
| Collection Name | Bathroom,Home |
| Color | White |
| Control Method | Touch |
| Controller Type | Button Control |
| Customer Reviews | 4.6 out of 5 stars 354 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Painted |
| Included Components | 4 Screws (#8-15 x 1"), Soffit Vent |
| Indoor Outdoor Usage | Outdoor |
| Installation Type | Permanent Installation |
| Item Dimensions D x W x H | 11.25"D x 7.85"W x 3.75"H |
| Item Type Name | Soffit Vent |
| Item Weight | 14.56 ounces |
| Main Power Connector Type | Standard Household Plug (e.g., Type A, Type B) |
| Manufacturer | Novelty Manufacturing Co. |
| Material | Plastic |
| Model Name | PreVent-It Bathroom Soffit Vent |
| Model Number | 42502.01 |
| Mounting Type | Roof Mount |
| Number of Packs | 1 |
| Number of Power Levels | 1 |
| Number of Speeds | 10 |
| Part Number | 42502.01 |
| Power Source | Undereave Vent |
| Product Dimensions | 11.25"D x 7.85"W x 3.75"H |
| Recommended Uses For Product | Exhausting Bathroom Fan, Ventilating |
| Room Type | Bathroom |
| Size | 4" Soffit Vent |
| Special Features | Built-in damper/flap provides a closed system, Easy to install & screws included, High-quality, durable resin plastic that's weather resistant, Made in USA, Patented design better ventilates bathroom exhaust |
| Standby Power Shutoff | High Efficiency |
| Style | 4" Soffit Vent |
| Switch Type | Push Button |
| UPC | 026978425027 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Lancaster Home Products
- **Color:** White
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Roof Mount
- **Power Source:** Corded Electric
- **Product Dimensions:** 11.25"D x 7.85"W x 3.75"H
- **Recommended Uses For Product:** Exhausting Bathroom Fan, Ventilating
- **Room Type:** Bathroom
- **Style:** 4" Soffit Vent

## Images

![PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack - Image 1](https://m.media-amazon.com/images/I/41v6hub2cSL.jpg)
![PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack - Image 2](https://m.media-amazon.com/images/I/61fKIxZgZkL.jpg)
![PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack - Image 3](https://m.media-amazon.com/images/I/71lSf4B9OWL.jpg)
![PreVent-It 4 Inch Soffit Vent for Bathroom Exhaust Fans, White, 1-Pack - Image 4](https://m.media-amazon.com/images/I/51Bc4v2GcML.jpg)

## Available Options

This product comes in different **Color, Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good choice.
*by T***. on January 30, 2026*

A well made and sturdy vent. Build in baffle prevents drafts from entering. Looks good and functions perfectly. Very easy to install. The unit is a little large but I had the room for it. Ended up looking great. Very pleased.

### ⭐⭐⭐⭐⭐ Glad I found this!
*by J***. on January 25, 2026*

Works great to push the air away from soffit. Matches my black soffit. easy to install. I have a 2 ft overhang, so this works and if ice icicles do form, there is room so it doesn't block the vent

### ⭐⭐⭐⭐⭐ Easy to install
*by T***D on July 20, 2026*

Great product. Easy to install in my soffit. Product comes white but I spray painted it tan to match my soffits. Came out great after painting.

## Frequently Bought Together

- PreVent-It Soffit Vents 4 Inch - Only Design that Prevents Moist Air from Re-entering Home, Under Eave Exterior Vents for Bathroom Exhaust Fan, Screws Included, White, 1-Pack
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- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

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---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-21*