Duncan Loop (Same as Paragum, Uni-Knot, Hangman’s Noose, Grinner Knot and Grapevine Knot)

Fly fishing knot used to attach the fly to the tippet; sport fishing knot used to attach the hook/lure to the line.

Materials: monofilament-light to heavy

Advantage: strong knot, very reliable, loop allows fly or lure freedom for action