10 x 25 Insulated Flexible Duct R4

Price: $85.00 per pcs

Availability: Contact for availability — call (347) 262-9561 for lead time

Description

A 10" x 25' run of R4 insulated flexible duct. The 10" diameter carries substantially more air than the smaller sizes, so it suits a trunk or a main branch rather than a final connection to a single register. R4 is the lighter insulation grade, appropriate where the run stays inside conditioned space — through an attic or crawl space, R6 is the right choice instead.