Heaters > Commercial Heaters > Fan Forced Heater Accessories TPI Additional Back Can / Rough-in Box BOX3310 Price $164.00 $104.96 QTY Add To Cart Add To My Wishlist SKU: BOX3310 Brand: TPI Description Accessories Related Items Reviews This Additional Back Can / Rough-in Box BOX3310 is a field installed accessory that can be used with all TPI 3380 series commercial fan forced ceiling heaters, or 3320 series commercial fan forced wall heaters.Weight: 10 lbs.UPC: 686334377850 Accessories Related ITems Don't see the size or color your looking for... See All Fan Forced Heater Accessories Products! TPI Wall Plate Adaptor SKU: 4300PB Color: White TPI 2" Extender SKU: 305EX16 Color: Brown TPI 4" Surface Mounting Frame SKU: 4300EX32 Color: White TPI Recessing Trim Frame For Cabinet Heaters SKU: TF33 Fuel Type: Electric TPI Low Volt Wall Mounted Summer Fan Switch w/ Relay SKU: FSW5112 Fuel Type: Electric TPI Duct Collar For Fan Forced Cabinet Unit Heaters SKU: DC33 Fuel Type: Electric Reviews