--- product_id: 543470338 title: "Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics" brand: "hon&guan" price: "1051 zł" currency: PLN in_stock: true reviews_count: 1 url: https://www.desertcart.pl/products/543470338-hon-and-guan4-inch-inline-duct-fan-146-cfm-variable store_origin: PL region: Poland --- # 32W Power Consumption 146 CFM Airflow 48 dB Noise Level Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics **Brand:** hon&guan **Price:** 1051 zł **Availability:** ✅ In Stock ## Summary > Breathe Easy, Live Smart! 🌬️ ## Quick Answers - **What is this?** Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics by hon&guan - **How much does it cost?** 1051 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/543470338-hon-and-guan4-inch-inline-duct-fan-146-cfm-variable) ## Best For - hon&guan enthusiasts ## Why This Product - Trusted hon&guan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Customizable Airflow:** 10-speed controller for tailored ventilation - • **Versatile Applications:** Ideal for grow tents, HVAC, and more - • **Unmatched Wind Pressure:** 945 Pa for superior ventilation - • **Whisper-Quiet Operation:** Only 48 dB, perfect for any environment - • **Energy Efficiency Champion:** 32W power for maximum airflow ## Overview The Hon&Guan 4 Inch Inline Duct Fan is engineered for optimal air circulation with a powerful 146 CFM airflow and a variable speed controller. Its durable metal housing ensures longevity, while the whisper-quiet operation at just 48 dB makes it perfect for various applications, including grow tents and HVAC systems. With an impressive wind pressure of 945 Pa, this fan is designed to tackle even the most complex duct layouts efficiently. ## Description Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics ## Features - 🛒【Super Wind Pressure】Hon&Guan inline fan mastered the core technology, the new generation of duct fans of wind pressure (945 Pa) is far ahead： more options for installation location, even if the duct layout is more complex high wind pressure can easily achieve air ventilation. - 🛒【Energy-Efficient Ventilation】Duct Size: 4" | Air Flow: 146 CFM | Noise: 48 DB | Air Pressure: 945 Pa | Speed: 7500 (RPM) | Power: 32W | Size: 6.5 x 5.7 x 5.7 In - 🛒【High Quality Material】 Durable metal housing, ideal for long duct runs. Designed to combine EC motors for truly quiet and energy efficient performance, the 4" radon fan is suitable for air temperatures from -4°F to 140°F. - 🛒【Adjustable Controller】 The 4-inch duct fan includes a variable speed controller, which can adjust the air volume in ten steps, and the noise level is only 48 decibels even at the maximum air volume. - 🛒【Application Scenarios】Designed to quietly ventilate grow tents,hydroponics, DIY 3D printers, and HVAC systems, transfer heating/cooling to rooms, circulate fresh air, cool AV closets, exhaust odors. ## Product Details - **Brand:** Hon&Guan - **Color:** Black & Blue - **Electric fan design:** Blower - **Power Source:** Corded Electric - **Style:** Modern - **Product Dimensions:** 5.7"D x 5.7"W x 6.5"H - **Special Feature:** EC Motor, Variable Speed Controller with 10 Steps - **Recommended Uses For Product:** Exhausting, Cooling - **Noise Level:** 48 dB - **Wattage:** 32 watts ## Images ![Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 1](https://m.media-amazon.com/images/I/61xTxt1QzpL.jpg) ![Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 2](https://m.media-amazon.com/images/I/61ZxLKM-eeL.jpg) ![Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 3](https://m.media-amazon.com/images/I/71zZ2s87UcL.jpg) ![Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 4](https://m.media-amazon.com/images/I/81qKAT5327L.jpg) ![Hon&Guan4 Inch Inline Duct Fan 146 CFM with Variable Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics - Image 5](https://m.media-amazon.com/images/I/71-fXuR3B+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great strong exhaust fan using with XTool Laser Engraver *by M***E on Reviewed in the United States on 11 July 2023* I purchased this exhaust fan for the XTool laser Engraver. I previously has the 3in exhaust fan it was great but not nearly as strong.The 4in is slightly louder but not louder than the machine. You can control the speed and it pulls all the air out of the machine area with ease.Purchased 4in dryer hose + 4 - 4in clips & 1 - 3in clipWe used dryer hoses and a funnel from 1.5in -> 3in. Hooked up 2in black hose and clipped it down. Then 3in side (4in hose) from the funnel to the fan. Then hooked top side of fan to hose and out a drilled 4in hole outside.Either one will work, I do recommend to use an exhaust fan to help! We don't have an air purifier addition. We've used this method on all types of materials from wood to leather to acrylic. --- ## 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.pl/products/543470338-hon-and-guan4-inch-inline-duct-fan-146-cfm-variable](https://www.desertcart.pl/products/543470338-hon-and-guan4-inch-inline-duct-fan-146-cfm-variable) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-23*