The One and Two Tray Econo Systems are strong, quality built Ebb & Flow hydroponic systems for the grower on a budget. Made in the USA. Built around our popular 3' x 3' tray, the Econo System has plenty of space to grow. The Two Tray Econo System doubles available growing space to 18 square feet. They include: One or Two 3' x 3' Econo Trays (.125" thick) are constructed of UV stabilized, impact resistant, ABS plastic material; Easy to assemble galvanized steel table frame with strong injection molded plastic corners; Submersible pump using energy efficient design and quiet operation with magnetic rotor technology; American Hydroponics fill/drain and over flow fitting kit, including vinyl fill/drain tubing; 30-gallon reservoir constructed of UV stabilized, impact resistant, ABS plastic material; Two year warranty (180 days on pump).