1 stores are offering it on Ebay with coupons. Also 4 vertical unit heater vent kit is one of the top sellers in and in 2022.

Our eBay Store Vertical Heater Kit For venting installations Unit type B venting order to vented outside. kit includes venting that will be users. intended vertical venting of power vented unit 4" This be used for UDAP30-125 power vented unit heaters.
This includes:3 - Vent Pipes 1 4" Round 12" Adjustable Vent 4" 0° to Adjustable Elbow 4" to Adjustable Elbows 4" 1 - Collar - 4" Draft Hood (not pictured)1 - Fl.
Silicone Type 1” combustibles in single homes.
Commercial applications Always check local codes any vented Payment: must be.
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