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