Repacking Kit, EPX 2155 / 2255 / Advantage 400 / 500 0551533 Gun_Maxum II "Gun to Extension Seal" is

"Gun to Extension Seal" is retained in the housing (no fumbling with a loose seal while attaching the extension to the gun like some competing/inferior extensions

Assembly Notes Grease the packing (white plastic seal) of the new valve spring unit and slide it into the gun under enough pressure to bring it all the way to the stop

This product is just the cup assembly

Kit Contains the Following:

rods and upper packings from dried pigment particles

Repacking Kit, EPX 2155 / 2255 / Advantage 400 / 500 0551533 Gun_Maxum II "Gun to Extension Seal" isIncludes Item Numbers: 2 4, 8, 10 11, 15, 17, and 19 as shown below in the fluid section breakdown.