Air Box 1-2-3 Refill Cartridge - 12 x 20 x 1-in

Replacement Filtration for Air Box Units - 12 x 20 x 1 In

A filter that has reached the end of its service life lets odors pass and leaves your air-handling setup working below its purpose. This refill cartridge replaces the spent element in Air Box 1, 2, and 3 units, so you restore odor control without buying a new housing. It is a flat, slim panel built for those units.

Sold as a single cartridge, this unit suits home gardeners who run one Air Box and need a replacement on hand. Commercial operators with several units can order one cartridge per unit and rotate replacements on their own schedule.

Key Features & Benefits

• Fits Air Box 1, 2, and 3 — one cartridge style covers three unit models.
• Slim 1 in profile — the flat panel is simple to handle and store.
• 12 x 20 in face — a defined footprint lets you confirm fit before you order.
• Sold each — buy exactly the number of replacements you need.

Who Should Use Air Box 1-2-3 Refill Cartridge

Growers who already run an Air Box 1, 2, or 3 and need to replace the filter element. It suits indoor cultivation rooms, tents, and commercial spaces that depend on odor control.

About Air Box 1-2-3 Refill Cartridge

This is a refill cartridge for Air Box 1, 2, and 3 units. It measures 12 x 20 x 1 in and ships at about 6 lb. It is sold each.

Frequently Asked Questions

Q: Which units does this cartridge fit?
A: It is listed as a refill for Air Box 1, 2, and 3. Check your unit's model before ordering.

Q: What size is the cartridge?
A: It measures 12 x 20 x 1 in. Compare these figures with your housing to confirm fit.

Q: How many cartridges come in an order?
A: One. The product is sold each, so order one per unit you need to refill.

Q: When should I replace an odor control filter?
A: Replace it when odor starts to get through or when airflow drops. Service life depends on your space, run time, and air quality, so follow the unit maker's guidance.

Q: What is a refill cartridge?
A: It is a replacement filter element that fits an existing housing. You keep the housing and swap only the spent element.