Pondmaster Mag Drive Pump Pre-Filter Part# 12505
 
Pondmaster Small Pre Filter Replacement cylinder foam for Mag Drive Pumps. These pre filters trap large unwanted particles before they can clog up and potentially damage the pump filter.
 
Fits:
Mag Pumps 2, 3, 5, and 7 
Mag Drives 250-700 models
Dimensions: 4"L x 2.25"W x 1"ID