Doggie Solutions Universal Spray Collar Refills Universal Spray Collar RefillsUniversal Odourless and Citronella Collar Refills suitable for Masterplus Aboistop Spray Commander and other Dog Spray Training CollarsnbspSuitable for Leading Brand Spray training and spray bark control collars including Dynavet Masterplus Aboistop Jetcare and Petsafe spray commander collarsnbspA Doggie Solutions gas refill should give approximately 200 SpraysnbspChoice of Citronella or Odourless Refills