Superior HeatFlo Convection Air Circulation Kit for DRL2055, DRL3555, DRL4048 and DRL6048 Gas FireplacesThe HeatFlo system is designed to redirect the convective heat of the fireplace from the front of the unit, above the glass, to a location higher on the wall. The use of this kit allows for TV installations closer to the fireplace or in recessed wall cavities above the fireplace. What's Included 1 ea. Register Assembly 1 ea. Register Trim 4 ea. 4 1 2 x 24 Flex Pipe (stretches up to 70 in length) 4 ea. Register Support Bracket 18 ea. Screws 4 ea.