Phat Pre-Filter, 10" x 39"

Pre-Filter Wrap for Phat Carbon Filters, 10" x 39"

A carbon filter's bed loses capacity faster when dust and loose debris settle directly onto the carbon, and replacing an entire filter over surface buildup is an avoidable expense. The Phat Pre-Filter is a fabric wrap that slides over your Phat carbon filter, catching debris before it reaches the carbon bed.

This wrap is sized for a 10" x 39" Phat carbon filter and ships with 2 plastic straps for a secure fit.

Key Features & Benefits

• Slide-on wrap design — fits directly over a matching Phat carbon filter with no tools needed.
• 2 plastic straps included — secures the wrap snugly around the filter body.
• Extends carbon filter life — catches dust and debris before it settles onto the carbon bed.
• Washable and reusable — rinse clean and reinstall instead of replacing on every buildup cycle.

Who Should Use This Pre-Filter

Growers running a Phat carbon filter who want to extend its service life by catching dust and debris before it reaches the carbon bed.

About Phat

Phat sizes its pre-filter wraps to match each carbon filter in its lineup, so growers can protect the carbon bed without needing to size a generic wrap by hand.

Frequently Asked Questions

What size Phat filter does this fit?

This pre-filter is sized for a 10" x 39" Phat carbon filter. Match the pre-filter size to your carbon filter's dimensions before ordering.

How does it attach to the carbon filter?

It slides directly over the carbon filter body and secures with the 2 included plastic straps, no tools required. Installation takes only a minute or two once the straps are in place.

Can I reuse this pre-filter?

Yes, it's washable. Rinse off collected dust and debris and reinstall it rather than replacing it on every buildup cycle.

When should I clean or replace the pre-filter?

Check it whenever you inspect your ventilation system, and clean it once visible dust buildup starts to reduce airflow through the wrap. A clogged pre-filter can restrict airflow just as much as a clogged carbon bed.