Proper applicator selection is based upon the package you will dispense from:
SEMCO Cartridge - Use the JIT Silicones Plus " FA256 Fluoro Applicator" - for 6oz SEMCO Cartridges
Sausage Packs - Use the JIT Silicones Plus "COMBO620AL Combo Applicator" - for 10oz or 20oz sausages PLUS 10.1oz cartridges
Caulking Cartridges - Economy Applicator #012ECG (24/box) - for 10.1oz cartridges