Features:

• The Vindicator handle and colored rings replace the original valve handle
• When valve is turned off, red ring is 100% visible
• When valve is turned on, the green ring advances over red ring
• Once completely on, the green ring will cover red ring completely
• 
  Model 1 – compatible with: Halcyon
  Model 2 – compatible with: Catalina, Dacor, OMS, PST, Sherwood 4000 & 5000, Thermo
  Model 3 – compatible with: Dive Rite, Scuba Max, Scuba Pro
  Model 4 – compatible with: Sherwood 6300, US Divers Aqualung
  Model 5 – compatible with: US Divers (Labeled Santa Ana, CA)
  Model 6 – compatible with: Blue Steel
  Model 7 – compatible with: Genesis KA70, Midland
  Model 8 – compatible with: Harrison, XS Scuba

  The Vindicator was designed to be an easy to read visual safety device to prevent divers from starting a dive with their air turned partially on or turned off completely. With 9 different sized models, the Vindicator is easily retrofitted to most valves on the market. The Vindicator is an easy way to reassure yourself and fellow divers whether your air is turned on or off. Perfect for individual divers, rental departments, dive charters and open water instruction