ReznorĀ® Vent/Combustion Air Terminal Kit, Horizontal, Accessory Type: Vent/Combustion Air Terminal Kit, For Use with: Model UDAS and UDBS Sizes 30-125 Unit Heater
(1) 211789 Concentric Adapter Box, (1) 211791 Exhaust Grill, (1) 151755 Inlet Guard, (8) 37661 #10-16 x 1/2 in Screws, (2) 207232 Brackets for Attaching Concentric Adapter Box, (1) 53335 Tube of High Temperature (450 deg F) Silicone Sealant