TrolMaster Beta-4 Digital Day/Night Temperature Controller grow-system/-trays/-reservoirs Robust Construction: Constructed with durable

Robust Construction: Constructed with durable food-grade stainless steel and rubber

Includes mounting screws

62" drainage hole on bottom

Nordic Pure Pure Carbon Pleated Odor Reduction MERV 8 Air Filters is made with a durable non-woven polyester base media infused with naturally derived charcoal

TrolMaster Beta-4 Digital Day/Night Temperature Controller grow-system/-trays/-reservoirs Robust Construction: Constructed with durableTrolMaster BETA 4 Digital Temperature Controller Day Night Precision for Heating & Cooling Maintain precise environmental conditions in your grow space with the TrolMaster BETA 4 Digital Day Night Temperature Controller. Designed to operate heating or cooling devices up to 10 amps, the BETA 4 makes it simple to dial in ideal temperatures with separate day and night settings. Equipped with an easy to use LED display and built in photocell, the BETA 4