Mammoth TT Twin Speed Inline Fan Switch between two different speeds with the press of a button. This quiet, powerful inline fan removes stagnant air from a grow space and removes it with the cool, fresh air needed for optimum growth. 100mm (4”) Mammoth TT Twin Speed Inline Fan (165m3/hour or 198m3/hour) – up to 1 x 400W light 125mm (5”) Mammoth TT Twin Speed Inline Fan (248m3/hour or 284m3/hour) – up to 1 x 600W light 150mm (6”) Mammoth TT Twin Speed Inline Fan (410m3/hour or 530m3/hour) – up to 2 x 600W lights 200mm (8”) Mammoth TT Twin Speed Inline Fan (530m3/hour or 690m3/hour) – up to 4 x 600W lights 250mm (10") Mammoth TT Twin Speed Inline Fan (1064m3/hour or 1405m3/hour) - up to 8 x 600W lights 315mm (12") Mammoth TT Twin Speed Inline Fan (1750m3/hour or 2206m3/hour) - up to 16 x 600W lights Adjustable airflow The Mammoth Twin Speed acts as two fans in one! Plants often need different levels of airflow throughout their lifetime. Seedlings in particular are vulnerable to disease and need a continuous supply of ventilation at all times.Choose from two different velocities to best suit the needs of your grow room, and keep plants at maximum health throughout the entire growth cycle. Quiet operation The Mammoth Twin Speed runs with minimal noise, offering a discreet and peaceful growing environment. With a minimum volume of 26dB it’s truly whisper-quiet. Safety first Overheating can be a concern for fans left running all day. The Twin Speed has a thermal protection measure in place, to safely switch off the fan should the temperature rise too high. How to use the Mammoth TT Twin Speed Fan? This fan comes with an integrated mounting bracket for fuss-free installation. Attach near the top of your grow tent or near the ceiling of a grow room. Plug the 1.8m cable lead (provided) into a mains source and switch on to begin use.The Mammoth Twin Speed is water-resistant to an IP65 standard, making it “dust tight” and protected against weather conditions and light sprays of water. Why choose the Mammoth TT Twin Speed Fan? It’s just as important to pay attention to airflow in a grow space as it is to nutrient and water levels. Fresh, cool air maintains a healthy temperature for plants and helps to keep disease such as mildew at bay.The Mammoth TT Twin Speed Fan is a durable, versatile solution to keeping plants well-ventilated throughout the entire growth cycle. Prevent wilting and disease, remove stagnant air, and save the cost of buying two separate inline fans.Let it run with total peace of mind that its anti-overheating measures are in place - and, should any other faults happen, customers are protected by a 2-year warranty. High-pressure, twin speed fan; Adjustable flow rate to two airflow speeds; Protection against overheating; Integrated mounting bracket; 1.8m UK mains cable included; Water resistant to IP65 standard; UKCA, CE, and RoHS certified; 2 year warranty. 4"Height: 19cmLength: 28.5cmWidth: 21cmPallet Quantity: 112Pack Quantity: 1Box Quantity: 45"Height: 19cmLength: 30cmWidth: 20.5cmPallet Quantity: 112Pack Quantity: 1Box Quantity: 46"Height: 21.5cmLength: 32cmWidth: 23cmPallet Quantity: 84Pack Quantity: 1Box Quantity: 48"Height: 25cmLength: 30.5cmWidth: 24.5cmPallet Quantity: 84Pack Quantity: 1Box Quantity: 410"Height: 32cmLength: 41cmWidth: 34.5cmPallet Quantity: 30Pack Quantity: 1Box Quantity: 112" Height: 38cmLength: 50cmWidth: 39cmPallet Quantity: 24Pack Quantity: 1Box Quantity: 1