Airbox 1-2-3 Pre Filter Pre-Filter:Airbox 1-2-3 Pre Filter allowing it to work in

allowing it to work in conjunction with beneficial biologics to feed tender flower sites and maintain overall health of the plant

This product requires minimal cleaning and maintenance times so you can focus on what matters and rest at ease

Titanium Coaxial Heat Exchanger

Optional Upgrade: Photontek Digital Lighting Controller

Airbox 1-2-3 Pre Filter Pre-Filter:Airbox 1-2-3 Pre Filter allowing it to work inReplacement pre filter for the Airbox 1, 2, 3, 4, and 4 Plus. It is recommended to replace this pre filter every 3 months. Airbox Replacement Pre Filter Sizes Airbox 1, 2 , 3: 12" x 12" x 1" Airbox 4: 12" x 15" x 1" Airbox 4+: 19" x 16" x 1"