Double Stack Connected Evolution™ Boilerless, Convection Steamer featuring Steam Vector Technology, electric, each unit holds (3) 12"x 20"x 2-1/2" deep pans, Digital Controls, water & drain connection needs plumbed, warranty NOT voided by water quality, NO water filtration required, 8kw, (2) 240v/60/1-ph, (2) cord with NEMA 6-30P, cULus, Made in USA, UL EPH Classified