--- product_id: 18510500 title: "Witten Automatic VentBestvents 315CBL Foundation Vent" brand: "witten automatic vent" price: "€ 144.87" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.pt/products/18510500-witten-automatic-ventbestvents-315cbl-foundation-vent store_origin: PT region: Portugal --- # DIY snap-in install Easy maintenance access Auto temp-activated venting Witten Automatic VentBestvents 315CBL Foundation Vent **Brand:** witten automatic vent **Price:** € 144.87 **Availability:** ✅ In Stock ## Summary > 🌬️ Stay cool, save energy, and upgrade your foundation game effortlessly! ## Quick Answers - **What is this?** Witten Automatic VentBestvents 315CBL Foundation Vent by witten automatic vent - **How much does it cost?** € 144.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/18510500-witten-automatic-ventbestvents-315cbl-foundation-vent) ## Best For - witten automatic vent enthusiasts ## Why This Product - Trusted witten automatic vent brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight Yet Durable:** At just 1.6 pounds, this plastic vent balances strength and ease of handling for any project. - • **Maintenance Made Simple:** Removable back panel ensures quick cleaning and upkeep without breaking a sweat. - • **Perfect Fit, Zero Hassle:** Designed for standard 8x16 inch openings with a 1-inch wide frame—ideal for new builds or upgrades. - • **Effortless Climate Control:** Automatically opens at 70°F and closes at 40°F—no electricity needed, just smart ventilation. - • **DIY-Friendly Snap-In Design:** Install like a pro with simple snap-in setup and color-matched set screws for extra stability. ## Overview The Bestvents 315CBL Foundation Vent is a lightweight, plastic vent designed to fit standard 8x16 inch openings. It operates automatically without electricity, opening at 70°F and closing at 40°F to optimize airflow. Featuring a simple snap-in installation with color-matched set screws and a removable back for easy maintenance, it’s perfect for both new construction and replacement projects. ## Description Witten Automatic VentBestvents 315CBL Foundation Vent ## Features - With 1 in wide frame for new construction or to replace old foundation vents - Fits standard 8 X 16 in vent opening - Operates automatically without electricity; opens at 70 deg F, closes at 40 deg F (approximately) - Simple homeowner/DIYer snap-in installation, with color matched set screws for additional stability - Removable back for maintenance and cleaning ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Witten Automatic Vent | | Part Number | 315CBL | | Item Weight | 1.6 pounds | | Product Dimensions | 19 x 15 x 6 inches | | Item model number | 315CBL | | Is Discontinued By Manufacturer | No | | Material | Plastic | | Item Package Quantity | 1 | | Batteries Included? | No | | Batteries Required? | No | ## Images ![Witten Automatic VentBestvents 315CBL Foundation Vent - Image 1](https://m.media-amazon.com/images/I/91mLsSMX7IS.jpg) ![Witten Automatic VentBestvents 315CBL Foundation Vent - Image 2](https://m.media-amazon.com/images/I/815dRDUAsdS.jpg) ![Witten Automatic VentBestvents 315CBL Foundation Vent - Image 3](https://m.media-amazon.com/images/I/71R+fo4JnpS.jpg) ![Witten Automatic VentBestvents 315CBL Foundation Vent - Image 4](https://m.media-amazon.com/images/I/81wUIui4jnS.jpg) ![Witten Automatic VentBestvents 315CBL Foundation Vent - Image 5](https://m.media-amazon.com/images/I/61b1xgs3hMS.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect for out garden shed *by K***Q on June 27, 2018* Installed these in the garden shed/greenhouse my husband built. They are great. They automatically open and close to vent hot air without the need for electricity. Almost like magic. Easy to install. A super value! ### ⭐⭐⭐⭐⭐ Wish they used phillips head screws *by B***E on October 13, 2021* I replaced my vents with these foundation vents around my house. They look nice as a finished project. The only suggestion I have for the manufacturer is to use phillips head screws rather than slotted screws ### ⭐ I purchased 8 of these vents. and 4 of ... *by D***E on January 15, 2016* I purchased 8 of these vents. and 4 of them did not close when the weather got cold, causing my pipes to freeze, Amazon did nothing for me, said my 30 days were up. We had very warm days , so I did not check them out. spend a lot of money on amazon, and I think they would have taken them back. Sorry to say I will spend my money somewhere else. Shame on you amazon ## Frequently Bought Together - WITTEN AUTOMATIC VENT Bestvents 315CBL Foundation Vent - RazAir™ Foundation Vent with Damper and Screen - 16"x 6.5" Weatherproof and Paintable ABS – Easy to Install Moisture Mold Reducing for Crawl Space, Outdoor, Garage, and Home Improvement - AIR VENT FA109000 16.94x8 ALU Founda Vent --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/18510500-witten-automatic-ventbestvents-315cbl-foundation-vent](https://www.desertcart.pt/products/18510500-witten-automatic-ventbestvents-315cbl-foundation-vent) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*