6″ Tall

Material
ASTM-A653 CS Type B Galvanized Steel, G-30 Coating LFQ Chemical Treatment

Gauge
30GA

Assembly
Ceiling boot assembled with C-115 2/16″ zinc coated steel rivets and has a rectangular opening with a 1/2″ drywall flange. The collar is 3 1/2″ tall roll formed 30GA steel with 1/4″ bead for flex attachment. Collar has 1/8″ finished hem.

Insulation
Knauf Equipment Liner M with ECOSE® Technology Available Thickness: R4 – 1″, R6 – 1½”, & R8 – 2″

ASTM C 1071, Type I, Flexible (replaces obsolete Federal Specification HH-I-545B.) NFPA 90A/90B, ASTM C 665/1617 Temperature Range (ASTM C 411), Microbial Growth (ASTM C1338, G21)