8" Diameter Duct 25ft in Yellow Tool Tethers its unique non-contact funnel minimizes

its unique non-contact funnel minimizes back-flow of expired air

Less calibration gas used: Requires about half of the test gas typically used for calibration and bump tests

A soft acrylic fleece liner adds warmth

Generous sizing for working comfort and mobility

cracking or crazing

8" Diameter Duct 25ft in Yellow Tool Tethers its unique non-contact funnel minimizesStandard duct yellow vinyl polyester 8 & 12 diameter with external wear strips custom sizes up to 36 diameter available Reinforced internal steel wire hoop 5 pitch 6 long attachment cuff, 8 or 12 diameter, with adjustable belt straps on both duct ends Maximum temperature rating 180