Thermal Seal Duct Systems, Inc.

4-Star Hygienic Duct Systems

Duct Type	High Hygienic Air Duct (Round/Square)
Longitudinal Joints	All joints continuously welded on inside and outside.
Transversal Joints	All joints continuously welded.
Sealing	N/A
Material	16 gauge Stainless Steel 304 2B Interior Duct/16 gauge Galvanized Skin for non-production areas (16 gauge 304 2B Stainless Steel Skin in production areas.)
Insulation	Polyisocyanate foam insulation (2.5"- 4") between exterior and interior duct