# Mammoth TT Twin Speed Inline Fan Kits Mammoth TT Twin Speed Inline Fan Kits offer an exceptional combination of affordability and performance, making them the perfect choice for growers looking for efficient ventilation solutions. With two speed settings right out of the box, these kits provide you with precise control over airflow. Paired with a high-grade Mammoth carbon filter, they ensure optimal air quality in your grow space. These kits include all the essentials you need, such as 5 meters of black combi ducting and three duct clips, for a hassle-free setup. ### Key Features - Exceptionally Affordable Ventilation Kit with Outstanding Performance - Dual Speed Options Included for Immediate Control - Paired with a Premium Mammoth Carbon Filter for Optimal Airflow - Utilises 50mm Bed Depth and High-Quality RC48 Carbon for Longevity (with a two-year lifespan) - Includes Five Meters of Robust Black Combi Ducting - Complete with Three Duct Clips for Simple Assembly - Proven Reliability Through Rigorous Testing - Effortless "Plug and Play" Setup - No Wiring Needed, Includes Power Lead ### Mammoth TT Fan Kits - Exceptional Value for Money Mammoth TT fan kits are designed to excel in removing hot, moist, and CO2-depleted air from your grow space, all at an incredibly reasonable price point. Each kit includes the robust Mammoth TT fan, a perfectly matched Mammoth carbon filter, black combi ducting, and duct clips. The Mammoth TT fans deliver impressive airflow for their price range and come with two speed settings, providing you with immediate control over ventilation. ### Mammoth TT Fans Mammoth TT Twin Speed fans are the smart and cost-effective solution for growers. These kits come complete with everything you need for a quick and easy setup—no extra wiring or components required. With two speed settings, you can achieve greater control over your grow room environment before investing in a fan speed controller. Running the Mammoth TT fan helps regulate high temperatures by expelling hot air, removing excess moisture, and bringing fresh CO2-laden air into the room. These fans play a vital role in maintaining a thriving growing environment. ### Mammoth Carbon Filters The Mammoth carbon filters included in these kits are precisely engineered to match the size and output rates of the TT fans. They are highly effective at neutralising odours, ensuring complete peace of mind for growers. These filters maintain optimal airflow without compromising odour control, thanks to their 50mm bed depth and premium-grade RC48 Australian carbon, considered the best source globally. ### Combi Ducting These kits come with black combi ducting, a robust alternative to traditional flexi ducting. Lined with durable plastic, it resists tearing and ensures long-lasting performance. Three duct clips are provided for easy and secure connections within your system. ### Airflow Rates - 4-Inch: 165m³/h or 198m³/h - 5-Inch: 248m³/h or 284m³/h - 6-Inch: 410m³/h or 530m³/h - 8-Inch: 530m³/h or 690m³/h - 10-Inch: 1064m³/h or 1405m³/h - 12-Inch: 1750m³/h or 2206m³/h ### How to Use To set up the system, start by cutting a short section of ducting. Then, use this piece to connect the inlet end of the Mammoth TT fan to the carbon filter using two of the provided duct clips. The remaining duct clip should be used to attach the primary length of ducting to the outlet end of the Mammoth TT fan. Ensure that you position the system at the uppermost part of your grow area to effectively remove hot air. Additionally, make certain that the ducting leads to an outdoor point. Avoid incorporating sharp bends in the ducting layout as they can diminish the efficiency of your ventilation system. ### Product Specifications **Mammoth TT 100mm (4")** Air flow: 165 m³/hour - 198 m³/hour Minimum noise: 60 dBA Speed: 5000 RPM Pressure: 500 Pa Input power: 40 watts Frequency: 50/60Hz Motor type: AC Voltage: 220–240 volts Size: 260mm x 160mm x 180mm Net weight: 1.5kg **Mammoth TT 125mm (5")** Air flow: 248 m³/hour - 284 m³/hour Minimum noise: 61.6 dBA Speed: 3800 RPM Pressure: 520 Pa Input power: 75 watts Frequency: 50/60 Hz Motor type: AC Voltage: 220–240 volts Size: 260mm x 160mm x 180mm Net weight: 2.3kg **Mammoth TT 150mm (6")** Air flow: 410 m³/hour - 530 m³/hour Minimum noise: 65 dBA Speed: 3200 RPM Pressure: 510 Pa Input power: 150 watts Frequency: 50/60 Hz Motor type: AC Voltage: 220–240 volts Size: 260mm x 160mm x 180mm Net weight: 2.8kg **Mammoth TT 200mm (8")** Air flow: 530m³/hour - 690m³/hour Minimum noise: 78dBA Speed: 3000 RPM Pressure: 677Pa Input power: 320W Frequency: 50/60Hz Motor type: AC Voltage: 220–240V Size: 260mm x 160mm x 180mm Net weight: 3.5kg ## Details - **Vendor:** Mammoth - **Type:** Ventilation - **Tags:** Ventilation, Ventilation Kits ## Images - Inline fan kit with white filter cartridge, fan housing, flexible duct, and two rings - Inline fan kit with white filter cartridge, red impeller fan outlet, flexible duct, and rings - Inline fan kit with filter cartridge, fan outlet facing forward, flexible duct, and two rings - Inline fan kit with filter cartridge, side view of fan with red impeller, flexible duct, rings - Inline fan kit with filter cartridge, fan outlet with red blades, flexible duct, and two rings - Inline fan kit with filter cartridge, red-blade fan housing, flexible duct, and two mounting rings --- > Source: [Eden Horticulture Ltd](https://edenhorticulture.co.uk/products/mammoth-tt-twin-speed-inline-fan-kits) > Updated: 2026-08-12