--- product_id: 235169912 title: "Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5\" square)" brand: "captive-aire" price: "€ 560.34" currency: EUR in_stock: true reviews_count: 7 category: "Captive Aire" url: https://www.desertcart.hr/products/235169912-exhaust-fan-roof-curb-19-5-square-x-20-high store_origin: HR region: Croatia --- # 19.5” square base Bolt-together flat roof curb design 18 gauge galvanized steel durability Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) **Brand:** captive-aire **Price:** € 560.34 **Availability:** ✅ In Stock ## Summary > 🏗️ Elevate your ventilation game with the ultimate roof curb support! ## Quick Answers - **What is this?** Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) by captive-aire - **How much does it cost?** € 560.34 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/235169912-exhaust-fan-roof-curb-19-5-square-x-20-high) ## Best For - captive-aire enthusiasts ## Why This Product - Trusted captive-aire brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Flat-Pack Shipping:** Bolt-together design ships flat, saving space and reducing shipping costs—install with minimal hassle. - • **Customizable Pitch Options:** Pitched curbs available on request to perfectly match your roof’s slope and optimize ventilation. - • **Precision Fit for 21” Fans:** Seamlessly supports popular exhaust fan models like DU33HFA & DR-50HFA for flawless integration. - • **Ready for Quick Installation:** Includes all nuts, bolts, and sealing silicone for a smooth, no-fuss setup that gets your project moving faster. - • **Rugged Galvanized Steel Build:** 18 gauge steel ensures long-lasting corrosion resistance and structural strength under all weather conditions. ## Overview The Captive-Aire Exhaust Fan Roof Curb is a robust 19.5” square by 20” high galvanized steel support designed for roof-mounted exhaust fans with a 21” base. Its bolt-together flat-pack design enables compact shipping and easy installation, while compatibility with multiple fan models and optional pitched curbs make it a versatile, durable solution for professional HVAC applications. ## Description Designed to properly support the weight of the exhaust fan for roof mounted applications. For use with fans that have a 21” square base. Compatible with fan models DU33HFA, DU50HFA, DR-33HFA, DR-50HFA. DD11FA, DD13FA Bolt together design ships flat for compact transportation and storage. Minimal field installation is required. Constructed of 18 gauge galvanized steel. Pitched curbs available upon request. Review: High quality curb - High quality curb. Review: well constructed - comes in flat cardboard box about 30"x30"x3" comes with fabric bag with nuts and bolts it had a few extra bolts and nuts come with small tube of silver colored silicone for sealing the seams of the panels when assembling unit. there are small vent slots in the sides of the exhaust fan curb I wish it did not have these slots but it will still work the roofer will cover these slots up when the new roof is installed ## Features - Designed to properly support the weight of the exhaust fan for roof mounted applications. - For use with fans that have a 21” square base. Compatible with fan models DU33HFA, DU50HFA, DR-33HFA, DR-50HFA. DD11FA, DD13FA - Bolt together design ships flat for compact transportation and storage. Minimal field installation is required. - Constructed of 18 gauge galvanized steel. - Pitched curbs available upon request. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B082MTCTV9 | | Best Sellers Rank | #328,239 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #972 in Household Ventilation Fans | | Brand | CAPTIVE-AIRE | | Brand Name | CAPTIVE-AIRE | | Customer Reviews | 4.7 out of 5 stars 41 Reviews | | Drawer Type | Storage | | Finish Type | Painted | | Finish Types | Painted | | Form Factor | Drop-In | | Installation Type | Drop-In | | Item Dimensions D x W x H | 20"D x 19.5"W x 20"H | | Item Weight | 30 Pounds | | Manufacturer | Captive Aire Systems | | Manufacturer Part Number | Roof Curb | | Material | galvanized steel | | Material Type | galvanized steel | | Mounting Type | Roof Mount | | Product Dimensions | 20"D x 19.5"W x 20"H | | UPC | 797435416949 | ## Product Details - **Brand:** CAPTIVE-AIRE - **Drawer Type:** Storage - **Finish Type:** Painted - **Form Factor:** Drop-In - **Material:** galvanized steel ## Images ![Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) - Image 1](https://m.media-amazon.com/images/I/81FVfe-1IZL.jpg) ![Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) - Image 2](https://m.media-amazon.com/images/I/81OePdyeVGL.jpg) ![Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) - Image 3](https://m.media-amazon.com/images/I/61eT6z8jLmL.jpg) ![Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) - Image 4](https://m.media-amazon.com/images/I/41rH5mu+Z4L.jpg) ![Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) - Image 5](https://m.media-amazon.com/images/I/41trurlnwjL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ High quality curb *by A***T on December 16, 2025* High quality curb. ### ⭐⭐⭐⭐⭐ well constructed *by T***Y on March 22, 2020* comes in flat cardboard box about 30"x30"x3" comes with fabric bag with nuts and bolts it had a few extra bolts and nuts come with small tube of silver colored silicone for sealing the seams of the panels when assembling unit. there are small vent slots in the sides of the exhaust fan curb I wish it did not have these slots but it will still work the roofer will cover these slots up when the new roof is installed ### ⭐⭐⭐⭐⭐ Perfectly made *by R***N on September 9, 2020* Perfect fit easy to install no problem at all ## Frequently Bought Together - Exhaust Fan Roof Curb- 19.5” square x 20” high, 18 gauge galvanized steel construction, vented bolt together flat roof curb (19.5" square) - Restaurant Canopy Hood Grease Rated Exhaust Fan- High Speed Direct Drive Centrifugal Upblast Exhaust Fan with speed control- 21" Base, 0.50 HP 115 Volt Single Phase Motor, 900-1500 CFM (DU50HFA) - Grease Box for Restaurant Canopy Hood Exhaust Fan (Includes Down Spout) --- ## 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.hr/products/235169912-exhaust-fan-roof-curb-19-5-square-x-20-high](https://www.desertcart.hr/products/235169912-exhaust-fan-roof-curb-19-5-square-x-20-high) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-10*