Quietflex® Insulated Sleeve Flexible Duct, 25 ft Length, 4 in Diameter, 10 in-WC Positive, 1/2 in-WC Negative, Fiberglass/Metalized Polyester, Silver, R-Value: R6, 6000 fpm Velocity Rating, -20 to 180 deg F Continuous, -20 to 200 deg F Intermittent

• If you have new or existing hard pipe that needs insulation the quietflex Insulated sleeve is ideal
• It increases the efficiency of warm or cool air traveling through the duct and reduces condensation build-up at the same time

• Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/Quietflex_380C_Specification_Sheet.pdf