UPC-04-4860 - Unico Return Air Duct, R-4.2, 20 inch diameter x 10 feet

This is an acoustical R4.2 flex duct for the M4860 return air; 20" diameter and 10' long

Unico Model	4860
Model Series	M-Series, V-Series, iSeries, U-Series
Duct Size	20"
Matching Duct Type	Return Air Duct
Duct Shape	Round
Material	Multiple
Flex or Rigid Duct	Flexible
R-Value	R4.2
Brand	Unico
Duct OD	22.5"