A 24"x33" Supreme pan that is 3 sections with the outside compartments being flat and the middle compartment containing shallow drop flues. There are fittings for a 1/2" valve and for a dial thermometer. Valves and thermometers sold seperate. This pan should evaporate 7-9 gallons of sap per hour. This pan will fit a Leader 1/2 pint arch, but you may have to take a row of bricks out of the firewall for it to fit.