1. OB300 Single Drain Overflow Box

    Single Drain Maxflow: 1200gph

    Dimensions: 9.13"x6.75"x10"

  2. OB300D Dual Drain Overflow Box

    Dual Drain Maxflow: 2000gph

    Dimensions: 9.13" x 6.75" x 10"

  3. OB400D Dual Drain Overflow Box OB400D Dual Drain Overflow Box
    $129.99

    OB400D Dual Drain Overflow Box

    Dual Drain Maxflow: 2500gph

    Dimensions: 10.5" x 9.75" x 9.25"

  4. OB-Mate 20 Small Water Return Plumbing

    3/4” Return Plumbing

    Great for Reef Octopus OB300s Overflow Boxes

  5. OB-Mate 25 Large Water Return Plumbing

    1” Return Plumbing

    Great for Reef Octopus OB300D and OB400D Overflow Boxes

  6. Luxury BX40 Water Overflow System Luxury BX40 Water Overflow System
    $149.00

    Luxury BX40 Water Overflow System

    Unique All-In-One Single Bulkhead

    Reef Octopus RX40 black tube overflow box is designed to make it easy to set up an aquariums' water flow system to and from the aquarium.

    Drain Size: 40mm Return Size: 20mm

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