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The A220 Plain Ends is a Class 0 Duct used as supply, return or exhaust. It solves the need for a stronger than average semi rigid general purpose venting duct.
Designed for low and medium operating pressuresSame construction as the V320, but with plain endsMade of non-combustible corrugated aluminumShips compressed to 24″
3″ x 10′ and 4″ x 10′ are now available as A-Seam™ with unique compression that takes less space:
Vestal Manufacturing 48 in Cast Iron Poker Damper
Emerson White Rodgers 1F75C-11PR, 70 Series Single-Stage Thermostats
Emerson White Rodgers 1F75H-21PR, 70 Series Heat Pump Thermostats
Aluminum Roof Louver, Brown, 8-In.
Gray Metals Reducer – No Crimp