Air Box Junior Replacement Coco Filter - 4 x 12 x 12-in

Replacement Carbon Filtration for 10-Inch Duct - 4 x 12 x 12 in

A spent filter lets airborne particles and odor pass into your ventilation path and your growing space. This replacement filter uses coconut charcoal carbon and a MERV 13 rated media to cut airborne particles, and it fits standard 10-inch duct so you can swap it in without rebuilding your system.

At 4 x 12 x 12 in and 8 lb shipping weight, this single filter suits hobbyists and small to mid-size indoor growers who need to refresh one duct run. It handles airflow up to 200 cfm, and you can order several if you run more than one line.

Key Features & Benefits

• Coconut charcoal carbon — premium virgin coconut charcoal supports odor control on exhaust ducts.
• MERV 13 rating — captures fine airborne particles such as dust, spores and pollen.
• Standard 10-inch duct fit — connects to common ducting without custom parts.
• Up to 200 cfm — suits compact ventilation setups.
• Replaceable, disposable design — you change the filter and keep the rest of the system.

Who Should Use Air Box Junior Replacement Coco Filter

Use it if you already run an Air Box Junior unit and need a replacement, or if you want a compact carbon filter for a 10-inch duct in a home or commercial growing space.

About Air Box Junior Replacement Coco Filter

The Air Box Junior Replacement Coco Filter measures 4 x 12 x 12 in, is sold individually, and uses coconut charcoal as its carbon material. It is rated MERV 13, accepts standard 10-inch duct, and is rated for airflow up to 200 cfm.

Frequently Asked Questions

Q: What duct size does this filter fit?
A: It accepts standard 10-inch duct. Check your duct diameter before ordering.

Q: How much air can it handle?
A: It is rated for airflow up to 200 cfm. Match your fan to that figure so the filter works as intended.

Q: What does MERV 13 mean?
A: MERV is a standard scale for how well air filter media captures airborne particles. A rating of 13 indicates fine particle capture, suited to dust, pollen and spores.

Q: Where should I install it?
A: It is intended for use on exhaust ducts. It can also adapt to other duct and filtering setups.

Q: Is the filter reusable?
A: It is a replaceable, disposable filter. Swap in a new one when it stops controlling odor or airflow drops.