Product Home > Product > Electrical System & Instrumentation Power Installation Conduits & Fittings > I-EXTB1-Duct Seal I-EXTB1-Duct Seal Introduction Cat.NO. Conduit Size Maker Cat.NO. Hub Size Maker I-EXTB1-5LB-TB 5LB T&B I-EXTB1-1LB-ID 1LB Ideal Product Consultation Company Email Address Tel Product Spec Quantity Location Memo Code