This is an Overmoulded AMP lead kit suitable for spa controllers with External AMP plugs. Some of the more common control systems that use these are listed below. Additional leads available.
Davey SpaQuip:
SP 400, SP 600, SP 601, SP 800, SP 1200.
SpaNET:
SV Mini 1, SV Mini 2, SV2, SV3, SV4, XS-200, XS-3000, XS-4000