Supa Under Gravel Filters Filtration & Aeration - Self leveling feature automatically

- Self leveling feature automatically adjusts to all water levels

on which the smallest model has one and the two larger ones both have two individually adjustable air outlets

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It includes the necessary fittings and instructions to ensure a secure and seamless setup in your aquarium

drying does not permanently impair the unit

Supa Under Gravel Filters Filtration & Aeration - Self leveling feature automaticallyUnder Gravel Aquarium Filters are suitable for Tropical, Marine or Coldwater Aquaria. They are to install, offer proof against "digging up" by fish, have a high filtration rate, eliminates the filter wool layer and also the air lift tube can be easily cleaned & positioned at either end of the filter