This cap fits the All-In-One lid ports and can be used for plugging the pulsator mounting stud and supply hose barb fittings for troubleshooting purposes.
This cap will not plug the Pulsator ports.
Pulsator plugs (where the pulsator lines attach) sold here: https://simplepulse.com/products/pulsator-plug?_pos=1&_sid=6239f776e&_ss=r