Airbox 4 Plus Pre Filter Pre-Filter:Airbox 4 Plus Pre Filter shut off CO2 when turn

shut off CO2 when turn on exhaust fans

Don’t subject yourself to thin plastic that heats up and kills your roots or produces potentially harmful “off” gases or unsightly reservoir yellowing

Warning & Toxicities: KEEP OUT OF THE REACH OF CHILDREN

the Incubator Deluxe Kit promotes efficient airflow and supports healthy plant development

Airbox 4 Plus Pre Filter Pre-Filter:Airbox 4 Plus Pre Filter shut off CO2 when turnReplacement 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"