At the highest point the grill projects only 1/2 in down from the ceiling. The electronically balanced centrifugal blower wheel assures maximum ventilation with minimum sound. Install using the adjustable hanging brackets for 16 in centers. 4 in metal duct collar with back draft. Motors are suitable for continuous operation. UL listed over a tub or shower on a GFCI circuit. HVI2100 certified. Housing dimensions of 10-7/8 in W x 9-3/8 in D x 7-7/8 in H.

• White, polymeric grill secured in place with torsion springs, easily removed if necessary
• Blower wheel, balanced polymeric dual inlet blower wheel 5-13/32 in Dia x 4 in D, 30 paddles, secured in place using 8M hex nut
• Motor enclosed 4-pole electronically balanced permanently split capacitor motor (PSC), life time lubrication, suitable for continuous operation
• Duct collar plastic collar for 4 in duct connection, comes complete with built in non-metallic back draft damper for quiet operation
• Ventilating are for bathrooms up to 110 sq-ft and for other rooms up to 135 sq-ft
• Electrical connections 1/2 in electrical knockouts provided
• Easy wiring access via either internal or external wiring compartment cover
• 4 in round duct connector with damper protects against backdrafts and ensures quiet operation
• Side access panel allows you to wire the fan from inside or outside the housing

• https://assets.unilogcorp.com/187/ITEM/DOC/Air_King_100005112_Catalog.pdf Catalog
• https://assets.unilogcorp.com/187/ITEM/DOC/Air_King_100005112_Specification_Sheet.pdf Specification Sheet