Ultra Sieve III Gravity Fed Pre Filter which is a poor substitute

which is a poor substitute for providing a healthy aquatic environment for your fish

including a 3" slide valve

Matala Expandable gravity filter maximizes Matala® filter media performance

Small diameter probe fits easily into a test tube

Ultra Sieve III Gravity Fed Pre Filter which is a poor substituteUltraSieve III Gravity fed sieve filterThe most compact, gravity fed, sieve filter with the highest pump capacity. For years this has been the leading and most reliable pre filter for professional koi ponds. Now supplied with an extra large waste outlet, including a 3" slide valve. How it worksPond water will flow over the top of the self adjusting weir. This weir is connected to the float so its height is automatically adjusted. This system will