Designed to comply with all federal OSHA and NFPA regulations

Here's some of the features of this filter-the "Tornado" action separator ring swirls incoming air to remove water

Four (4) Non Marking Caster Rubber Wheels

They come with a gasket

210ES: 261830

Black Max Fan Explosion Proof Electric Fan Size:16" Designed to comply with allFeatures Fan sizes: 12", 16", 20", 24" Motors options: Electric (TEAO), Hazardous Electric (EXPL), Pneumatic (AIR) Heavy duty steel frame construction Spiral cast aluminum blades Adaptable for dust socks and ducting Benefits Designed for maximum airborne dust collection Provides negative pressure to aid in collecting silica and other airborne abrasive dust High volume air flow design MOTOR EXPL SHROUD (CFM) 3200 VENTURI (CFM) 5200 H. P. 1 3 AMPS 5. 8