Seamless Sump® Aquarium Sumps Filtration System

seamless® sump

Fully Functional One-Piece Molded Filter Tubs

A Revolution in Aquarium Sumps And Filtration Systems

The Seamless Sump® Aquarium Filter

  • One-piece molded construction – No seams, no welds, NO LEAKS!
  • Glass lids are great for UV lights – No warping or yellowing.
  • Made of High-Density Polyethylene.
  • Far superior to acrylic or glass for sump use. No more brittle, stale, “old tank” syndrome.
  • Three different tubs are easily connected and expandable for many configurations.
  • It fits in most commercially available stands from the front!
  • Great for both salt and freshwater tanks. Compartmentalizes the various filtration tasks.
  • Optimizes microparticle filtration, biological filtration, and aeration.
  • Easily transforms from a wet filter to a wet dry filter.
  • Works great with the H2Overflow® system or any other 1-1/2” overflow.
  • Cord management grommets to install heaters and pumps.
  • Pre-molded pilot hole dimples for easy fabrication for many bulkhead configurations.
  • Commercial quality, professional look and feel. Engineered and Built to Last a LIFETIME!
Seamless Sump Package 150-240 Gallon Refugium Configuration Diagram Inside
Filter Sock Tub, Baffle Tub, and Reservoir Tub plumbed together.

Aquarium Sumps: Key Features and Details

Seamless Sump Single Sock Tub

Seamless Sumps®
Single Sock Tub

  • Prevents debris from entering your media stack.
  • Polishes microparticles for extreme water clarity.
  • Easily change socks without turning off your pumps.
  • No high-pressure seal that can leak.
  • Water can bypass the sock if it gets clogged and won’t disrupt the remainder of the filter system.
  • The glass lid won’t turn yellow or curl.
  • Comes with a 200-micron filter sock and bracket.
  • Replacement socks are inexpensive, disposable, and reusable.
  • The tub is made from 1 piece molded HDPE sump material, a material far superior to glass or acrylic for this use.
  • A must-have for any aquarium sump system.

More Information & Views of the Sock Tub

Seamless Sump Double Sock Tub

Seamless Sump®
Double Filter Sock Tub

  • Up to 2400GPH of flow!
  • Handles up to two H2Overflows.
  • Adds little to the footprint of your filtration system and is cost-effective.
  • Sturdy HDPE construction that’s easy to clean and won’t absorb chemicals.
  • The glass lid will not warp or turn yellow.
  • All of the other benefits of the single sock tub.
  • A great upgrade for any sump system.

More Information & Views of the Double Sock Tub

Seamless Sump - 1S4B Four Sock Tub

Seamless Sump®
Jumbo 4 Sock Aquarium Filter Tub

  • Up to 4 aquarium filter socks for a flow rate of up to 4800GPH!
  • Height of a sock tub with the footprint of a reservoir tub.
  • Accepts up to four H2Overflows in a single tub.
  • Large reservoir area perfect for submersible skimmers and live rock.
  • A hinged glass canopy (optional) minimizes evaporation and lets you view the top of your skimmer.
  • Adds massive water volume, flow rates, and particle filtration with minimal footprint and cost.

More Information & Views of the Jumbo 4 Sock Aquarium Filter/Protein Skimmer Tub

Seamless Sump Skimmer Tub

Seamless Sump®
Protein Skimmer Tub

  • Up to 3 aquarium filter socks for a flow rate of up to 3600GPH!
  • Accepts up to four H2Overflows in a single tub.
  • Designed to use with a Protein Skimmer.
  • Adds massive water volume, flow rates, and particle filtration with minimal footprint and cost.

More Information & Views of the Protein Skimmer Tub

Seamless Sump®
Baffle Tub

  • One-piece molded baffle design. No seams, no welds, no leaks!
  • Media baskets provide organized, high volume, high surface area, and efficient bacteria culture for biological filtration.
  • Easily arrange media baskets to provide a constant, fresh supply of bio media to the culture.
  • An optional pad on top of the media stack prevents debris and refuse from getting into your media stack.
  • Baffle design prevents debris and micro bubbles from getting to the pump side of the tank.
  • Baffle design ensures the media is always submerged even if water levels go down on the right side due to evaporation.
  • Not under pressure and no reliance on seals that can fail over time.
  • Redundant pumps. In the event of a failure, replace an inexpensive pump rather than an entire filter. (Use a Siphon Stopper® to reduce the likelihood of back siphoning.)
  • Comes standard with a cord management grommet to connect your pumps, heaters, and other in-sump equipment.
  • Standard 2” molded-in slip fitting over media stack to easily connect to your overflow.
  • Many other configurations are available.

More Information & Views of the Baffle Tub

Seamless Sump®
Reservoir Tub

  • Compliments the sock tub or baffle tub. It can also function as a stand-alone sump or refugium system.
  • Use as an evaporation tub, refugium tub, feeder fish tub, or to add water volume to the entire system.
  • The glass lid won’t yellow or curl. Great for UV plant lights.
  • Easily fabricate holes for tubing, bulkheads, etc. to the top or sides of the tub.
  • Pre-molded pilot hole dimples ensure consistent height and spacing to create several sump configurations.
  • Recirculation tee in line with baffle pump allows controlled reservoir circulation without investing in another pump.
  • Many more uses and features.

More Information & Views of the Reservoir Tub

Seamless Sump®

Mini Reservoir Tub

  • The same features and benefits of the standard reservoir tub.
  • A slightly smaller footprint allows more tubs in smaller stands.
  • HDPE construction has no welds, no seams, and no leaks!
  • Great for evaporation or refugium use.
  • The glass lid will not warp or turn yellow.

More Information & Views of the Mini Reservoir Tub

Seamless Sump® Complete Packages

Seamless Sump® System: Common Configurations

With a versatile Seamless Sump®, the possibilities are endless. A wide variety of aquarium sump configurations are possible with this system. You can assemble your own, or give us a call and a service technician will help you design the ultimate aquarium sump!

Learn More About The Components Of Our Seamless Sump System