Thunder 20 Qt, Double Boiler (Pot, Inset, Lid), Aluminum, Heavy Gauge, 3 Piece Set

Outer Pot: 12-1/4" Diameter X 11" Height, 1-5/8" Handle, Middle Pot: 11-1/4" Diameter X 9-3/4" Height, Lid: 13" Diameter X 5/8" Height, Dishwasher Safe, Standard Electric, Gas Cooktop, Halogen Ready, Mirror-Finish, Nsf