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💨 Keep your home fresh, dry, and pest-free with the vent that actually works!
The PreVent-It 4 Inch Soffit Vent features a patented design that directs over 95% of moist bathroom air away from your home’s soffit, preventing moisture damage, reducing HVAC costs, and improving indoor air quality. Made from durable, weather-resistant resin and including all installation hardware, it’s easy to install and maintain. Its built-in damper flap blocks pests and drafts, making it the smart, energy-efficient choice for bathroom exhaust ventilation up to 110 CFM. Proudly made in the USA.






| ASIN | B0C94LSV37 |
| Air Flow Capacity | 110 Cubic Feet Per Minute |
| Best Sellers Rank | #34,265 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Soffit Vents |
| Blade Material | Plastic |
| Brand Name | Lancaster Home Products |
| Collection Name | Bathroom,Home |
| Color | White |
| Control Method | Touch |
| Controller Type | Button Control |
| Customer Reviews | 4.7 4.7 out of 5 stars (326) |
| 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 |
| Is Product Cordless | No |
| 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 | 0.91 Pounds |
| 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 Power Levels | 1 |
| Number of Speeds | 10 |
| Part Number | 42502.01 |
| Power Source | Corded Electric |
| Recommended Uses For Product | Exhausting Bathroom Fan, Ventilating |
| Room Type | Bathroom |
| Size | 4" Soffit Vent |
| Smart Home Compatibility | Not Smart Home Compatible |
| 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 | 1.00 Count |
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