The Keystone filter for the ProBlue and DuraBlue Series glue melters provides filtering of contaminants that can cause clogs to the pump, hose, modules and nozzles.
Keystone improved the design by allowing the filter to be detached from the filter bung through reversed threading. This allows the user to change the filters and use the same filter bung. Stocking the filter screens is much less expensive than stocking the complete filter assemblies.
After purchasing the complete filter assembly (KNFH0226), you can stock the replacement filters (KNFH0226-2)
Call us if you need assistance.