Evolution Aqua K1 Micro Media - Biological Filter Micro Media Maximum Head Height_8 Feet The on/off cycle is approximately

The on/off cycle is approximately 40 seconds vacuum and 20 seconds drain out

Made of durable plastic

of ammonia removed

Measures 46″ wide x 14″ deep x 3 1/2″ tall

Evolution Aqua K1 Micro Media - Biological Filter Micro Media Maximum Head Height_8 Feet The on/off cycle is approximatelyK1 Micro Filter Media K1 media has been used by Evolution Aqua in Koi filtration systems for a number of years. This new type of filter media, K1 Micro, contains all of the benefits of traditional K1 media but is extruded in a much smaller form. The small wheel shaped filter media pieces provide a significantly increased protected surface area per cubic meter when compared to standard K1 for bacteria to colonize. This makes K1 Micro an ideal filter