An ingenious gravity fed system that waters & feeds plants for weeks without the need for pumps, electricity, mains water supply or maintenance! Simply top up the 47 litre tank with water & liquid feed every few weeks. The cleverly designed ' Aquavalve' draws water from the reservoir into the tray section each time the plants have drunk up all that's there, providing excellent results. Ideal for tomatoes, peppers, cucumbers & much more. Kit comprises tank, ' Aquavalve', 2 x 8.5 litre pots, 57.5 x 27cm (22½ x 10½") tray, irrigation pipe & water filter.