Wells (Middleby), WVU-72_240/60/1, Universal Ventless Hood, 72" cooking zone, vertical air discharge, 4-stage filtration: grease filter, pre-filter, HEPA filter and charcoal filter, (4) LED lights, stainless steel stand, self contained ANSUL® R-102 system, Certified Type-1 compliant, 1 HP, UL Classified, cULus Classified, US (NON-RETURNABLE Item) (For replacement filters, this model requires (2) Pre-filters (22618) & (2) HEPA Charcoal Filter Packs (WL0711)) (Note: field convertible to horizontal air discharge)