--- product_id: 60739185 title: "GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18\"x18\"x6\")" brand: "gsw" price: "S/.1274" currency: PEN in_stock: true reviews_count: 5 url: https://www.desertcart.pe/products/60739185-gsw-18-white-powder-coated-4-way-adjustable-metal-diffuser store_origin: PE region: Peru --- # 20" mounting size Durable metal 4-way airflow GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") **Brand:** gsw **Price:** S/.1274 **Availability:** ✅ In Stock ## Summary > 🌟 Elevate Your Airflow Game! ## Quick Answers - **What is this?** GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") by gsw - **How much does it cost?** S/.1274 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/60739185-gsw-18-white-powder-coated-4-way-adjustable-metal-diffuser) ## Best For - gsw enthusiasts ## Why This Product - Trusted gsw brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Perfect Fit:** Designed for 18” round or 18” x 18” rectangular ducts, ensuring seamless integration. - • **Customizable Airflow:** Four adjustable outlets allow you to direct airflow exactly where you need it. - • **Unmatched Durability:** Crafted from robust white powder-coated metal for long-lasting performance. - • **Versatile Application:** Ideal for restaurants and bars, enhancing air distribution in any setting. - • **Effortless Installation:** Features a 1” edge for easy mounting; customize screw holes for a perfect fit. ## Overview The GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser is engineered for durability and versatility, making it the perfect choice for evaporative and swamp coolers in commercial settings. With a mounting size of 20” x 20” and adjustable airflow options, this diffuser ensures optimal air distribution while being easy to install. ## Description GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") ## Features - [Durable]- GSW diffuser is made from white powder coated metal making it durable and longer lasting. - [Mounting Size]- For up to 18” diameter round ducts or 18” x 18” rectangle ducts. This product is designed to cover a 18” x 18” hole size. The mounting size is 20” x 20”. Please measure your installation area before purchase. - [Versatile]- This white powder coated metal diffuser is for evaporative/swamp cooler which is perfect for restaurant and bar. - [Easy To Install]- The white powder coated metal diffuser comes with an 1” width edge at the end of the body for easy installation. Screw holes are not pre-drilled, please drill hole on each edge then mount the screw to the ceiling. - [Adjustable Air Outlet]- There are a total of 4 adjustable air outlet/shutoff to control where the air will flow. Body dimension: 18”W x 18”L x 6”H. ## Images ![GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") - Image 1](https://m.media-amazon.com/images/I/61EySEd7G6L.jpg) ![GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") - Image 2](https://m.media-amazon.com/images/I/51IwQ3T+GbL.jpg) ![GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") - Image 3](https://m.media-amazon.com/images/I/61XYHndS9pL.jpg) ![GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") - Image 4](https://m.media-amazon.com/images/I/71hcx1hssOL.jpg) ![GSW 18” White Powder Coated 4-Way Adjustable Metal Diffuser for Evaporative/Swamp Cooler, 20” Mounting Edge (18"x18"x6") - Image 5](https://m.media-amazon.com/images/I/61nGlI3CxZL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Great quality! I'm pleased! *by C***T on Reviewed in the United States on November 19, 2018* Concern: closing four side vents for winter leaves gap at top where air can still flow through metal diffuser. Solution: purchase a 2'x2'1" Owens Corning Foamular (stiff) insulation sheet at Home Depot, for example, and cut it to fit inside diffuser (in my case, 20"x20"x1"). You need to leave vents open, however, for insulation to fit snuggly inside. With insulation air can't flow through diffuser even though vents remain open. I put a hinge on one side of diffuser rim so as to more easily insert and remove the insulation with changing seasons. ### ⭐ 1.0 out of 5 stars crap *by T***L on Reviewed in the United States on May 10, 2020* After an hour and a half of Time working I got all of the lovers to work.....this item is wonderful when you spend the time fixing it....you can send it back 100 times you WILL never get one that works .... YOU must message the hinge area of all the vents each end and then it is really good.....There are 40 single hinges ....so take you time ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Five Stars *by M***K on Reviewed in the United States on September 5, 2016* Very well built and good finish --- ## 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.pe/products/60739185-gsw-18-white-powder-coated-4-way-adjustable-metal-diffuser](https://www.desertcart.pe/products/60739185-gsw-18-white-powder-coated-4-way-adjustable-metal-diffuser) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-05-17*