This 2-ply 1st Stage Pre-Filter fits the ACSI Force Air 2000 and for the Novatek NovaAir 2000 Air Scrubber. Measures 24 inches x 24 inches.

First stage pre-filter for the Force Air 700. Add additional efficiency and protection to your main filter with this pre-filter.

This spun polyester filter fits the Phoenix Guardian HEPA system (PH-GHS2-EA). Measures 24 x 24 x 1 inch.

Spun polyester filter for Phoenix Mini Guardian HEPA system (PH-GHSM-EA). Measures 16 x 16 x 1 inch.

This replacement HEPA filter fits the HEPA 400 Air Scrubber, Velo and Velo Pro air movers from Dri-Eaz. This filter also restores your Velo HEPA Attachment Kit (F518) to maximum efficiency. It is ideal for use during general air scrubbing applications.