Free Shipping on Orders over $79!

Trigger Systems Crystal Cube Sump


  • The CRYSTAL series sumps have the same design and quality as the all other Trigger series sumps but are made of all clear material. 

    Features of the CRYSTAL sumps are:

    • Locking Filter Sock Holder
    • Dual platforms (SUMP model)
    • Protein Skimmer section
    • Refugium section

    Dual Platforms

    CRYSTAL SUMP models come with dual platforms in the space before the return section. The top platform comes with a foam block filter and the bottom one is open to use for several different filtration methods (bag of carbon, bio balls, rubble rock, etc.). 

    Locking Filter Sock Holder

    Filter socks snap and lock into the filter sock holders to secure the filter sock from falling out when it becomes clogged and needs to be cleaned or replaced. The 4” filter socks are 100 micron rating.

    Drawstring Tabs

    Tabs are located on the top support brace in front of the 1” bulkhead fittings which are included. The purpose of these tabs is to provide a location for tying off 7” diameter filter socks that have draw strings 


  • Crystal Cube Sump Model Specs

    Dimensions: 18″ long x 18″ wide x 15″ high

    Drain/Skimmer Section: 10.875″ x 11″

    Front/Refugium Section: 17.5″ x 6.5″

    Return Pump Section: 6.4375″ x 11″

    Total Water Volume: 20 gallons

    Skimmer Water Level: 9.5″ fixed




Related Items