The fans feature a fully sealed plastic housing. The housing is joined via a vibration welding process. The process uses transverse, reciprocating motion at the point of contact between the housing’s inlet and outlet pieces. The friction produces heat that melts the thermoplastic material at the interface. The melted material quickly re-solidifies, resulting in a fused, single-piece housing. The fused seam is inherently air tight, very strong and permanent. No screws or adhesive is used to join the housing pieces. An air-tight fan ensures that efficiency is not lost and contaminants are not spilled due to leakage.
The RVF models are exhaust-air fans for installation on external walls. The unit consists of an impeller with backward-curved blades and a casing in galvanized sheet steel with a white powder-paint coating. When installed on an exterior wall, all ambient noise is kept outside.
AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
Inline Duct Booster Fan A smart inline duct fan designed to quietly ventilate hydroponic grow rooms, boost heating/cooling to rooms, circulate fresh air, exhaust projects, and cool AV closets. Featuring an inline mixed-flow design, the duct fan can maintain airflow even in high static pressure applications. Contains an DC-motor with PWM-control for a quiet and energy efficient performance. Includes an intelligent controller that features advanced programming and functions. Complete kit includes one duct fan unit, one thermal controller, one corded thermal probe, two duct clamps, installation manual, all necessary mounting hardware, and a corded AC plug adapter. Intelligent Controller The controller can be programmed to adjust fan speeds to respond to varying high and low temperatures, and humidity. For ventilation applications, the controller can be set to run continuously, or triggered to run at customizable speeds when given power, due to its backup memory capability. Additional features includes a countdown timer, alarm system, and eco-mode. Includes detachable 12-foot precision water-resistant probe. Quiet and Energy Efficient Design Unlike common duct fans that uses an AC-motor which are loud and unmanageable, this duct fan features an DC-motor that is controlled using PWM...
TerraBloom 4" 188 CFM Inline Fan with Variable Speed Controller. Centrifugal Exhaust and Intake Metal Duct Blower
Pick the Right Fan For Your Application TerraBloom MDF series is a centrifugal type inline duct fan. It's made of metal and houses a backward propeller powered by a 87W motor. This fan creates a very powerful airflow, which will quickly ventilate your target space, while bringing the temperatures and humidity down and/or clean the air in the grow room from smell and other pollutants through a carbon filter. MDF-series fans will handle static air pressure very well. Keep in mind that with maximum air flow comes reasonable amount of "wooosh" made by the moving air, because of that we've built this model with a motor speed controller, which will allow you to select a desired level of output and the ratio between sound volume/airflow. The motor is adjustable between 100% to 50% of max output. MDF Series Fans are ETL certified. TerraBloom Metal Duct Inline Fan, Model TB-MDF-4, 188 CFM, 87W Heavy-Duty Metal Construction with Powerful 87W Motor Delivering 188 CFM OF AIRFLOW Easy To Install With Included Metal Bracket or Mount Directly on the Carbon Filter Built-In Motor Speed Control Allows Adjustment between 100%-50% of Max Motor Speed Sleek Jet Black Design That Matches TerraBloom's Carbon Filters ETL Certified 1 Year Warranty Against Manufacturing Defects
Radon Fan 4 Inch, Zhanye 100mm Inline Exhaust Duct Quiet,110V by 125V 210CFM, Strong Centrifugal Ventilation with Mounting Bracket,Waterproof IP67, Speed Controllable
Advantage: Versatility: Radon fan can be installed anywhere such as: Greenhouse, Attics, Bathrooms,smoking room, ect Inline fan's bearing use permanently lubricated dual ball bearing to perform maintenance free operation Radon fan's casing material : thick plastic for waterproof IP67, blower for exaust and intake can be installed in outdoor and indoor There is 1pcs soundproof sponge and 1pcs soundproof net in our every duct fan to reduce noise. Speed controllable: you need to connect power cord with speed controller to reach high to low speed Packing include: 1. 1pcs 4 inch inline duct fan. 2. 1pcs Pre-wired 4-feet power cord with US 100/125V standard household plug 3. 1 pcs mounting bracket Radon Mitigation Basics For most homes, the mitigator will follow three steps to reduce airborne radon: diagnostic evaluation, sealing and installation of the airborne radon reduction system. The most commonly installed type of system uses active soil depressurization (ASD), formerly called sub-slab depressurization (SSD). Another method involves the installation of a heat recovery ventilator. The radon mitigator will design the right system for your home, depending on its design, the underlying soil, and other factors. The airborne radon system works by changing air pressure beneat...
Vortex Powerfans are high performance inline duct blowers constructed from quality steel with heavy duty attractive hammertone powdered coat finish. The extended collar allows for easy duct installation and taping. Superior quality and smart design ensure vibration-free operation with balanced motorized impellers with permanently lubricated ball bearings. Include 6' power cords, and galvanized mounting brackets allowing both horizontal and vertical installation. Other features include:- Extended collar and lip, allowing easy duct hook-up- Impact resistant, sound absorbing heavy gage steel casing - A rustproof hammertone powder coat epoxy finish - The permanently lubricated balanced motor ensures long life - 100% speed controllable Factory installed 120V power cord- A worry free 10 Year WARRANTY .
The housing is manufactured from a two-piece stamped galvanized construction. The two halves are joined using Fantech’s unique folded seam closure, which gives the fan the first in class, air tight seal. Duct connected outdoor and wet room applications of the fan are possible due to the air tight casing. FG fans are equipped with backward-curved impeller blades and external rotor motors. With the motor in the airstream the fan provides the constant dissipation of heat buildup thus giving the fan first in class of longevity and reliability.
Suncourt Centrax TF104-CRD 4" In-Line Centrifugal Fan
The Suncourt Centrax TF104-CRD 4" In-Line Centrifugal Fan mounts to your air duct and is the ideal solution to boost airflow, move air or exhaust air. It uses backward inclined blades with ball bearings that are permanently sealed and lubricated, ensuring
Centrifugal Fan 4in Duct: find, shop, buy, compare
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The Rebel Inline Fans have been discontinued -- the most similar fan would be the Hurricane series, found here:
Hurricane 4": https://amzn.to/2t4Uqlu
Hurricane 6": https://amzn.to/2tiCrY5
Hurricane 8": https://amzn.to/2JUjlyj
Hurricane 10": https://amzn.to/2yl82xJ
Hurricane 12": https://amzn.to/2LXGgth