Comparison : |
Item # SPGV2604, 4 Inch (in) Size and 26 Gauge Thickness Galvanized Steel Spiral Duct Item # SPGV2605, 5 Inch (in) Size and 26 Gauge Thickness Galvanized Steel Spiral Duct Item # SPGV2606, 6 Inch (in) Size and 26 Gauge Thickness Galvanized Steel Spiral Duct Item # SPGV2607, 7 Inch (in) Size and 26 Gauge Thickness Galvanized Steel Spiral Duct Item # SPGV2608, 8 Inch (in) Size and 26 Gauge Thickness Galvanized Steel Spiral Duct
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