1/2 gal. Marine and RV Treatment and Cleaner



Drainbo Marine and RV Holding Tank Treatment is a biological holding tank treatment formulated for use in all boats, ships, recreational vehicles, and portable restrooms. An environmentally safe, economical and easy-to-use liquid concentrate, Drainbo will penetrate, degrade, and digest biological waste, household grease, and detergents.

  • Does not dilute in tank
  • Microbes multiply, increasing strength in tanks
  • All-natural microbes penetrate, degrade and digest waste making clean-out quick and easy at removal station
  • Contains coconut which helps keep rubber from drying out, not allowing air to seep back into cabin from tank
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