The TapeTech 90T Filler Adapter attaches to the TapeTech 72TT, 73TT or 76TT EasyClean® Pumps to fill Corner Applicators, Nail Spotters and EasyClean®, EasyClean® MAXXBOX® or Power Assist® Finishing boxes with joint compound. Use with gasket 700049 (for 72TT or 73TT only - not included).