Our G300 Mini 2-Module Gun is designed to be compatible with the similar ITW hot melt glue gun with a filter. We also have Mini modules comparable to Nordson’s MiniBlue series. Modules are not included. We also sell replacement parts for the G300 Mini; please refer to the chart for item name and pricing. If you would like to order replacement parts for the G300 Mini, please email us or call our office at (908) 561-9442.