Part Number: 0066800

The Aqua TROLL RDO Fast Cap Replacement Kit has everything you need to replace your expired RDO Fast Cap for the Aqua TROLL 500 and Aqua TROLL 600.

Designed specifically for use with Aqua TROLL instruments, the RDO Fast Cap will not function on the Aqua TROLL 400, RDO PRO-X Probes, or RDO sensors on TROLL 9500 Water Quality Instruments.

See the RDO Cap Explainer for details on RDO Caps.


  • 12-month Fast Cap
  • Lens cloth
  • Silicone O-ring lubricant
  • Replacement O-rings
  • Instruction sheet

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