T20420 10" End Cap   See larger image and other views  Your Price:** $18.95 Description End Caps are used to block spur lines that are created for future duct system expansion. See page 188 of our 2008 Grizzly Catalog! See similar items in: > Home > Dust Collection Accessories > Fittings Final prices will include state sales tax for items shipped to WA, MO, or PA. Shipping charges for items not shipped via truck freight will be added according to our shipping rates.