Cal Pump Stainless Steel and Bronze pumps are widely used in koi ponds, water gardening, and applications where dependability and longevity are a must. Two year warranty. Premium Stainless Steel and Bronze construction for longevity. Suitable for fresh, salt, chlorinated or brominated water (max of 3·5ppm. Can be used in hot water applications up to 110_F. Extremely quiet operation. Use submerged or in open air below water level. Features a flow adjuster.