Overview of the controllers and pump options available from DA Components along with a quick run down of the connectors, always handy to have spares in the van but if you get caught out you can also use hose lock connectors available from most diy shops or garden centers:

ABC 2
https://www.dacomponents.com/abc21...

DA V16
https://www.dacomponents.com/12volt...

DA V16 with chemical pump
https://www.dacomponents.com/12volt...