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Make your H2O 1810PLUS, 1820PLUS, or 1830PLUS a multi-dog system Add-on or Replacement Collar/Receiver for the H2O 1810PLUS, 1820PLUS, or 1830PLUS.
Available with your choice of Black, Orange, or Green collar straps.
Black is recommended if you need to replace the original collar/receiver that came with your H2O system. Orange and/or Green are recommended to expand your H2O PLUS unit to a 2-dog or 3-dog system.
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