1SB Single Sock Tub – Aquarium Sump

1SB Single Sock Tub – Aquarium Sump Details

SKU: 1sb-seamless-sump-tub-configuration Category:


The single sock tub can support up to 1200 gallons per hour of flow. It can hold one of our large premium filter socks. It is designed to pour into the Baffle Tub. The tub comes standard with a glass lid and one filter sock.

Product total
Options total
Grand total

Height 22.13 in
Length 13.5 in
Depth 12.69 in
Length (Without Output Spout)

7.94 in


High Density Polyethylene (HDPE)

Max Volume

5.9 Gallons

Ideal Operating Volume

5.9 Gallons

Max Flow Rate

1200 GPH


Our Seamless Sump® Single Sock Tub has a single input for an H2Overflow®. This means it can support a flow rate of 1200 gallons per hour (GPH).

The molded output spout on the right side of the sock tub is designed to flow into our Seamless Sump® Baffle Tub. The Baffle Tub is designed with a bio media chamber on one side and a pump chamber on the other side.

The Seamless Sump® Advantage

Every Seamless Sump® tub is made out of a single molded piece of durable high-density polyethylene (HDPE). Our filtration tubs are easy to clean and won’t leak or fail.

You can mix and match our tubs in different combinations to create the perfect filtration system for your aquarium’s needs. The number of combinations and possibilities are almost endless!

The Seamless Sump® filter sock tub is the perfect solution to both prevent debris from entering your media stack and to polish micro particles from your water. You will never see water as clear as when you use this sock tub! After a water change or fresh installation, this tub will clear up your water clarity in a fraction of the time!

The unique design makes changing the sock very easy and accessible without even having to turn off the flow of the system. Unlike other sock housings, the system is not under pressure and does not require a tight seal. Most other housings and canister filters rely on gaskets under pressure that will inevitably fail over time.

Should for some reason your sock get clogged with particles or debris between services (highly unlikely given the flow rate it can handle) the water will simply bypass the sock and continue through the system without causing a flood or emergency. The glass lid also won’t turn yellow or curl like an acrylic lid in other systems.

This tub works with our premium 100 micron 8″ x 18″ filter sock. It includes a sock bracket, and a 1-1/2″ slip fitting to easily connect to an overflow. Bulkheads and elbows also available to connect to our baffle tub or reservoir tub. Also works well with other sump systems.

Replacement socks are inexpensive enough to be disposable, yet can be reused many times when rinsed with a mild bleach solution if desired. Because our products are designed by our professional service technicians and engineers we make our products to last and have a low lifetime operating cost. We don’t design products just to sell you consumables like other companies. Made from one-piece molded HDPE (read more on HDPE), a material far superior to acrylic or glass for this use. A must-have for any sump system.