Mammoth TT Twin Speed Inline Fan Size:4" The Mammoth Twin Speed runs

The Mammoth Twin Speed runs with minimal noise

This product is designed to be used indoors and in grow rooms

Neutral pH level

Mount the pH Controller on a wall at a suitable height

Mammoth TT Twin Speed Inline Fan Size:4" The Mammoth Twin Speed runsSwitch between two different speeds with the press of a button. This quiet, powerful inline fan removes stagnant air from a grow space and replaces it with the cool, fresh air needed for optimum growth. 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.