Universal Ventless Hood, 48″ cooking zone, horizontal air discharge, 4-stage filtration: grease filter, pre-filter, HEPA filter and charcoal filter, self-contained fire protection system, air flow sensors, (3) LED lights, interlock system, stainless steel construction, adjustable legs, self contained ANSUL® R-102 system, Certified Type-1 compliant, 3/4 HP, UL Classified, cULus Classified, US (NON-RETURNABLE Item) (For replacement filters, this model requires (2) Pre-filters (22618) & (1) HEPA Charcoal Filter Pack (23312)) (Note: field convertible to vertical air discharge)