--- product_id: 15521888 title: "20342 Maxi-Vent Air Admittance Valve" brand: "studor" price: "15727 kr" currency: ISK in_stock: true category: "Studor" url: https://www.desertcart.is/products/15521888-20342-maxi-vent-air-admittance-valve store_origin: IS region: Iceland --- # Supports up to 500 DFUs capacity Operates from -40°F to 150°F Exclusive vermin & debris protection 20342 Maxi-Vent Air Admittance Valve **Brand:** studor **Price:** 15727 kr **Availability:** ✅ In Stock ## Summary > 🚿 Breathe Easy: The Ultimate Valve for Odor-Free, High-Performance Plumbing ## Quick Answers - **What is this?** 20342 Maxi-Vent Air Admittance Valve by studor - **How much does it cost?** 15727 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/15521888-20342-maxi-vent-air-admittance-valve) ## Best For - studor enthusiasts ## Why This Product - Trusted studor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bug & Debris Defense:** Dual internal and external screening plus vermin protection keeps your system clean and clog-free. - • **Push-Fit Convenience:** Quick, secure installation with a versatile rubber connector fitting 3- or 4-inch pipes. - • **All-Weather Reliability:** Operates flawlessly from freezing -40°F to scorching 150°F, ensuring year-round durability. - • **Max Ventilation Mastery:** Effortlessly prevents foul odors and maintains water seals with advanced air admittance technology. - • **High-Capacity Performance:** Handles up to 160 DFUs on branches and 500 DFUs on stacks—built for robust plumbing systems. ## Overview The Studor 20342 Maxi-Vent Air Admittance Valve is a cutting-edge plumbing solution designed to replace traditional venting by allowing air intake only when needed. It supports high drain fixture unit capacities (up to 500 DFUs), operates reliably across extreme temperatures (-40°F to 150°F), and features exclusive vermin and debris protection. Its push-fit rubber connector fits standard 3- or 4-inch pipes, making installation seamless while ensuring your drainage system stays odor-free and efficient. ## Description Studor 20342 Maxi-Vent Air Admittance Valve: Ducting Components: desertcart.com: Industrial & Scientific ## Features - Maxi-Vent air admittance valve with push-fit rubber connector creates ventilation that prevents the release of foul air from the drainage system and loss of water seals in traps - Designed for use as an individual, branch, circuit, or stack vent; capacity of up to 160 DFUs (drain fixture units) on a branch and 500 DFUs on a stack - Uses gravity to automatically close seal and prevent circulation of unpleasant bathroom or drain odors; exclusive vermin protection system keeps out bugs and foreign objects - Fits 3- or 4-inch piping; complies to ANSI/ASSE 1050 and 1051; temperature rating of -40°F to 150°F (-40°C to 65.6°C); this style air admittance valve is not recognized as a mechanical vent in the International Building Code - Screening on the inside and outside of the Maxi-Vent protects the sealing membrane from foreign objects ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00FQEX5CU | | Best Sellers Rank | #223,502 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #239 in Relief Valves #1,162 in HVAC Ducting | | Color | White | | Customer Reviews | 4.4 4.4 out of 5 stars (77) | | Date First Available | October 3, 2013 | | Included Components | Maxi-Vent Air Admittance Valve with Push-Fit Rubber Connector | | Item Package Quantity | 1 | | Item Weight | 11.7 ounces | | Item model number | 20342 | | Manufacturer | IPS Corporation | | Material | Polyvinyl Chloride (PVC) | | Part Number | 20342 | | Product Dimensions | 3.5 x 3.5 x 6 inches | | Shape | L_shaped | | Warranty Description | Limited Warranty | ## Images ![20342 Maxi-Vent Air Admittance Valve - Image 1](https://m.media-amazon.com/images/I/81s8ECO2DsL.jpg) ## Questions & Answers **Q: does the unit come with the rubber connector? It does not show in the photos and no mention in the description.** A: The Studor Maxi-Vent I purchased did come with a heavy rubber "adapter" for 4" ( 4"OD) fits hub or coupling. The unit itself is 3" OD, fits 3" hub or coupling. I have used many mini vents and this one works as well or better. **Q: I want to install it under a wooden deck over a flat roof. How much height is the minimum required to install it?** A: Carlos , I can't measure the vent as it was installed at a vacation home, but if I remember correctly the vent itself is at least 6", top to bottom, and then add any other fittings , pipe , etc. Sorry I could not be more precise. I used it in the crawl space and with a 3" elbow in a horizontal pipe ,it took up about 13". Carlos, just estimating here, so use your judgment on your project. Good luck! PS the vent works as advertised!! **Q: Does it come with a donut (or wide o-ring) for connecting to inside of 4" pipe? Female for the vent, male for the pipe?** A: No. If I remember correctly. I used a 3 inch fernco coupling t connect it to the pipe. It is same O.D. as 3 inch pvc. **Q: Does it require any unclipping or adjusting before you install or just put it up?** A: It slips right onto the end of your PVC pipe. No adjusting. I removed my old one and slipped this one on in it's place. ## Frequently Bought Together - Studor 20342 Maxi-Vent Air Admittance Valve with Push-Fit Rubber Connector, White - Studor 20341 Mini-Vent Air Admittance Valve with PVC Adapter, 1-1/2- or 2-Inch Connection - Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve --- ## 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.is/products/15521888-20342-maxi-vent-air-admittance-valve](https://www.desertcart.is/products/15521888-20342-maxi-vent-air-admittance-valve) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-09-15*