Rosemark Water Tanks sell a full range of water tanks and outdoor furniture including slimline water tanks, round water storage tanks, underground and underdeck tanks and our dual-purpose water tank furniture that serves as both a discreet water tank and an attractive piece of outdoor furniture. We also stock water tank and outdoor furniture accessories including filters, first flush diverters, vertical gardens and pumps. If you are looking for the most sustainable outdoor furniture on the market look no further than Rosemark Water Tanks. Our tanks come with a 10 year guarantee and we have a range of colours to suit any décor.