This is the older style seal kit for older NorthStar pumps. Most of the time with NorthStar pumps, you typically won't need to change the valve discs as they are delrin, not rubber, so this is the standard replacement kit. These are for the teal pumps from before 2013. The large O-ring included is to be inserted into the large U-cup after you have installed the U-cup. It is only needed if you use your pump to fill up the automatic taper, as it reinforces the U-cup. If you are just filling boxes, you won't need the large o-ring installed.
Includes:
- SHW-069 - rubber U-cup piston seal
- Rubber piston u-cup shaft seal
- Nylnon liner for inside the brass nut.
- Optional O-ring to reinforce the u-cup (for use when filling the automatic taper)
