--- product_id: 24818123 title: "Apollo Horticulture 4\" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation" brand: "apollo horticulture" price: "€ 35.23" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.it/products/24818123-apollo-horticulture-4-inch-190-cfm-inline-duct-fan-built store_origin: IT region: Italy --- # Whisper-quiet operation Variable speed control 190 CFM airflow Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation **Brand:** apollo horticulture **Price:** € 35.23 **Availability:** ❌ Out of Stock ## Summary > 🌱 Elevate Your Airflow Game! ## Quick Answers - **What is this?** Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation by apollo horticulture - **How much does it cost?** € 35.23 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/24818123-apollo-horticulture-4-inch-190-cfm-inline-duct-fan-built) ## Best For - apollo horticulture enthusiasts ## Why This Product - Trusted apollo horticulture brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Breathe Easy:** Experience optimal airflow with 190 CFM for your indoor garden. - β€’ **Tailored Comfort:** Adjust the speed to suit your unique ventilation needs. - β€’ **Quality Assurance:** Backed by a 1-year manufacturer warranty for your peace of mind. - β€’ **Versatile Applications:** Perfect for grow rooms, kitchens, and moreβ€”wherever you need fresh air. - β€’ **Whisper-Quiet Performance:** Enjoy a peaceful environment while keeping air moving. ## Overview The Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan is designed for versatile ventilation in various environments, featuring a built-in variable speed controller for customizable airflow. Its durable, quiet operation makes it ideal for indoor gardening, kitchens, and more, ensuring a fresh and comfortable atmosphere. ## Description The goal of Apollo Horticulture is simply to be the best value in grow lights. We continually work to produce the highest quality, fully featured, and most up to date hydroponic equipment at the lowest prices possible. We believe that yielding better quality, larger grows does not necessarily mean a higher price tag. The consistency our team delivers year after year, along with unbeatable service, makes up the complete package our customers deserve. It is our commitment to be your guiding light in the world of indoor growing, and to be the grow light company that you will want to do business with again and again. Keep your grow environment cool and your air clean with Apollo Horticulture Inline Fans, designed for maximum durability. The added value of the built-in speed controller makes our fans an efficient way to create the optimum environment for your growing needs. Top that off with reliable plastic inline fan construction at a value deal, you too can breathe easily knowing that your plants are getting exactly what they need at the best price. Package Includes: - 1 Plastic Inline Fan with Built-in Adjustable Speed Control - 1 Mounting Bracket - 1 Instructions Pamphlet 4” Fan Specifications: - Voltage: 115 AC - Frequency: 60 Hz - Power: 35 W - Current: 0.3 amps - CFM: 190 CFM - Speed: 2400 rpm - Noise: ≀ 31 dB ## Features - 1 - Apollo Horticulture 4" Inch Plastic Vent Inline Fan - Dimensions: 11.8" x 8" x 7.6" / Duct Size: 4" / Ducts ends are removable - Plastic inline fan with built-in adjustable speed control – keeps air cool and moving in your indoor gardening environment - Versatile – great for grow rooms, greenhouses, kitchens, commercial and home spaces, industrial environments, factories, locker rooms, attics, bathrooms, warehouses, storage spaces and any area you need to assist your current air duct or ventilation system - Quiet and durable fan increases airflow to help move chemicals fumes, smells and odors out of your space. You can always rest assured that you are backed by quality hydroponics equipment from Apollo Horticulture. / ** 1 YEAR MANUFACTURER WARRANTY ** ## Images ![Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation - Image 1](https://m.media-amazon.com/images/I/71x-bd56+2L.jpg) ![Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation - Image 2](https://m.media-amazon.com/images/I/71J2kHxz7dL.jpg) ![Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation - Image 3](https://m.media-amazon.com/images/I/71pM67Yn16L.jpg) ![Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation - Image 4](https://m.media-amazon.com/images/I/71y+gAd5vaL.jpg) ![Apollo Horticulture 4" Inch 190 CFM Inline Duct Fan with Built in Variable Speed Controller for Ventilation - Image 5](https://m.media-amazon.com/images/I/61-45msVwrL.jpg) ## Customer Reviews ### ⭐⭐ 2.0 out of 5 stars Actually 56-65 decibels loud. (PICTURES) *by R***R on Reviewed in the United States on May 26, 2016* Upon unboxing the item, I was pleasantly surprised to see that the fan was constructed in durable materials. While the 4" version is anemically weak in all but it's max setting, the 6" blows a good amount of air. Don't fool yourself into believing the 4" model will flow 190CFM. I doubt it would flow that in free air, but it certainly won't hold up to static pressure of 90 degree elbows or carbon filters like a centrifugal fan design will. Furthermore, I do not believe it will flow enough through a carbon filter to b of use to many people. The main problem with this design is its cheap motor and fan control. This thing really hums which makes me question whether it is a variable speed motor, or if it is just a AC motor with a rheostat. Several articles state that attaching a rheostat (dimmer) to a fan is a serious fire hazard, and I did see where another customer showed one that caught on fire. The manufacturer states that the fan registers less than or equal to 30 decibels (dB). I measured it at 1 meter at 56dB on low and 65dB on high. The manufacturer must have been measuring from an adjacent room or some other deceptive manner. For exhausting bathrooms silently look at the Panasonic Whisper line and never look back. If you need a quiet, small inline, everyone is impressed by Soler & Palau. This seems like a decent fan, but if you are going to put up with the noise, why not get a better constructed metal centrifugal fan? This fan idea has promise, but they need to get a properly designed 3-speed motor that has specific windings to each speed. This should eliminate the hum and make a great product. While I gave the 6" model 3 stars for at least moving air forcefully, I gave the 4" 2 stars for being very weak. (I've posted details of the 6" model on the relevant page) ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Great duct fan for the price. *by W***L on Reviewed in the United States on November 14, 2016* A great fan for the price. I've used other duct fans in the past and they are cumbersome and loud. This is just the right size and virtually silent. I highly recommend this fan for those who don't need the fastest most expensive fans.As a 20 year member of Amazon I rely on independent reviews when shopping. Therefore, I will always try to be as honest and impartial as I can and will try to provide helpful insight into the product. I am reviewing this product as it relates to how it works for me in my intended use. Your needs and experiences may of course be different. I tend to review products that I really like, or that let me down in some manner. If you found this review helpful, then please click the "HELPFUL" link below! Thank you, and HAPPY SHOPPING! ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars THIS PRODUCT SUCKS!!! *by K***U on Reviewed in the United States on June 9, 2016* This product sucks the air out of my Apollo 4'x4'x7' grow tent just fine. It is sitting on a shelf 2ft. above said tent and pulls air out thru a 6" carbon filter inside and then pushed 10' thru to a vent in my ceiling and out an 8" roof vent. It's been on and running quietly 24/7 since the moment it arrived well packaged 2 months ago. Awesome fan to exhaust a small indoor area. The variable speed is a nice feature as during certain phases of growing and/or climate conditions require more or less flow at times. The unit can sit/rest on a shelf or has holes in the base to accommodate wall/ceiling mounting. I have 3 now, one in a grow tent, one in a dry tent and a back up just in case. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.it/products/24818123-apollo-horticulture-4-inch-190-cfm-inline-duct-fan-built](https://www.desertcart.it/products/24818123-apollo-horticulture-4-inch-190-cfm-inline-duct-fan-built) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-09*