Express Series HEPA Filter, Cartridge, Fits 0.25 US gal.

• The immediate containment, one quart H13 HEPA filter (2 pack) is 99.97% efficient at .3 micron and includes three layers of 56 pleat media
• The three layers consist of one cellulose layer and two glass layers
• The HEPA filter captures everything from hazardous particulate, dry chemical, bed bugs, cockroaches, rodent droppings and much more

Specifications:
Fits US Gallon Size: 0.25 US gal.
Type: Cartridge