Bulk Reef Supply

BRS Felt Filter Sock with Draw String

Grouped product items
BRS Felt Filter Sock with Draw String 4” x 8”

SKU: 205911

In stock


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BRS Felt Filter Sock with Draw String 4” x 14”

SKU: 205907

In stock


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BRS Felt Filter Sock with Draw String 7” x 16”

SKU: 205908

In stock


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Filter Socks are used on overflows to remove small floating particles from aquarium water. This can dramatically improve water quality and reduce maintenance on filters that would otherwise become clogged.

Felt Filter Sock is better at removing particles than mesh but can clog faster. Draw string attaches directly to plumbing.

200 Micron Filter sock

Filter socks come in mesh or felt and with a plastic ring or draw string. See below for differences and unique advantages.

  • Mesh: Thin, doesn't clog as easily as felt
  • Felt: Thicker, better at removing particles, but can clog faster
  • Plastic Ring: attaches via ring that fits common sump holders
  • Draw String: attaches directly to plumbing
  • BRS recommends starting with felt socks and switching to mesh if they clog faster than desired.

Filter sock benefits:

  • Regular use will result in crystal clear water most convenient form of mechanical filtration.
  • Remove excess food, detritus, organic waste, dust and other particulates
  • Convenient form of mechanical filtration
  • Prevents larger objects like sand, crabs and snails from damaging pump motors
  • Reduces ammonia and nitrate producing organic waste
  • Increases filter life
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Product Questions

What is the micron density rating for these socks?
Question by: Johnny on May 2, 2019, 9:09 PM
Hi Johnny, these mesh filter socks have a 200 micron density.

Please let us know if you have any further questions.
Answer by: Matt on May 3, 2019, 9:19 AM