Marine Metal Bubble Donut Air Diffuser

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The Marine Metal Products® Bubble Donut is a 3" weighted glass bead diffuser for use with portable aerators. Tough, durable disk attaches easily to a standard silicone air line and stays on the bottom, ensuring even dispersal of dissolved oxygen. Requires a 1-hour pre-soak in water before the first use.

  • 3" weighted glass bead diffuser
  • For use with portable aerators
  • Attaches to standard silicone air line
  • Ensures even dispersal of dissolved oxygen
  • Pre-soak for 1 hour before the first use
Web ID: 1509091022