IK Sprayer replacement Felt Filters are for all IK Foam sprayers, these replacement filters are spares for when you need to change out the filter near the tip as the other one may be clogged up and not performing like new anymore.
 
Strip of 10 Replacement round felt filter pads.
 
These can all be used on the following IK Foam Sprayers below
 
IK-1.5 Foam
IK-9 Foam
IK Foam Pro 2
IK Foam Pro 12