Aqua Ultraviolet - Ultima II Filter 1000 with 1½" and 2" Valve Ultima II 1000 Filters:Ultima II Filter 1000 with 2" Valve They also feature high-quality double

They also feature high-quality double silicone carbide mechanical seals (impeller side) for increased performance and additional abrasive resistance

providing a complete filtration system for ponds up to 700 gallons

36 Watt UV Lamp (Item: 31PS333)

000 µw/cm2 (EOL) GPH: 1

84060)Size: 2

Aqua Ultraviolet - Ultima II Filter 1000 with 1½" and 2" Valve Ultima II 1000 Filters:Ultima II Filter 1000 with 2" Valve They also feature high-quality doubleThis is the next generation of filters and one of the best tools for Koi ponds. The Ultima II is specifically engineered to meet the environmental demands of koi ponds. The lightweight media is designed for very high flow rates. There is a patent pending on this tubular media which has low head loss and a very high biofilm surface. The "Y" shape on the inside and wings on the outside affords a protective surface under back washing and our patent