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3-1/2" Quick Double Seal-Off
Unit of Measure

Specifications

Nom. Duct Size (in.)

N/A 3-1/2

Nom. Duct Size (mm)

N/A 89

Duct I.D. Range (in.)

N/A 3.50 to 3.75

Duct I.D. Range (mm)

N/A 89 to 95