Seachem Laboratories Aquarium Filter Sock with Plastic Collar, White, 7 in x 16 in, Large

If you run a sump and overflow system, you already know that clean water starts with good mechanical filtration. The Seachem Laboratories Filter Sock with Plastic Collar in white is built to be an integral part of that setup, and this is the large size, measuring 7 inches by 16 inches. It is designed to pull particulate out of the water before it ever circulates back to your fish, so your display stays clearer and your other filtration can do its job.

• Rated at 100 microns, so it captures fine particulate for exceptional debris removal as water passes through.
• The roomy 7 inch by 16 inch large size gives you more surface area, a good fit for bigger sumps and higher flow.
• Welded seams hold up over time, and unlike threaded seams on some similar products, they will not break down with use.
• A singed finish reduces wear and helps prevent loose fibers from releasing back into the water column.
• The plastic collar simplifies installation and drops neatly into standard sump fittings.
• The rigid collar keeps the sock mouth open and seated, so flow is directed through the media instead of around it.
• Mechanical filtration like this lifts visible gunk early, easing the load on your biological and chemical stages.
• The clean white fabric makes it easy to see at a glance when the sock is loaded and ready to be swapped.
• A practical pick for marine, reef, and freshwater sumps where polished water matters.
• Sized for owners who want a durable, reusable mechanical media instead of constant disposable patches.

Whether you are dialing in a new reef or keeping an established freshwater sump running clear, this large Seachem filter sock gives you a dependable, easy-to-fit way to keep particulate moving out and clarity moving in. Seat it in your sump fitting, let it work, and rinse or replace it as part of your regular maintenance routine.