24 Volt DC relay for Goldline Aquasol or Pentair pool controls. Switching contacts are DPDT for up to 3 Hp pump. Relay accepts signal from control box and switches pump speed to high when solar is on. Will work with all manually switched two speed pumps. Mounts directly in Aquasol or Pentair control box complete with wiring harness. Contacts are DPDT 20Amp.