Check the listing for details. Waikato Electronic Pulsator - Model R (Ripplephase) USED. Condition: Used. Listed at 75.00 USD. Waikato Model R (Ripplephase) Electronic Pulsator - Waikato Model R (Ripplephase) Electronic Pulsator, with its 24V operating system complements our existing world class range of pulsators, providing that extra bit of flexibility and ingenuity. 24V operating system for greater reliability and greater longevity. Complies with International Standards Built-in non-return valves offering "worry-free" in-milking backwash options of pulse tubes and pulsators In-lid-mounted PCB for easier maintenance In-lid air filter for greater efficiency One pulsator operates two sets of clusters Multimount attachment - for pipe sizes from 50mm to 101mm Filtered air port for use with Waikato pulsator air filters Programmable Ripplephase option for smooth vacuum control Easily adjustable rates and ratios Low maintenance & Whisper-quiet operation Model R (Ripplephase) All available as Pre-Wired USED LOT#67