CPR Sock-It Mini 4 Inch Filter Sock Holder

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This item is in stock in our East and West Coast warehouses



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  • Add the benefit of a pre-filter to your existing sump with ease
  • Easy to install
  • Easy to change & clean the filter sock
  • Very high quality
  • Dimensions: 5 1/8" L x 4 3/4" W x 1 3/8" H
  • Bracket fit onto vertical walls of tanks or sumps up to 1.5" thick
  • Designed to hold 4" filter sock (sock sold separately)

Manufacturer Info

CPR Aquatic Aquarium Supplies
In Arcata, located in Northern California, the sea is a way of life. From the advanced Marine Biology department at Humboldt State University, just up the hill from CPR’s headquarters, to Humboldt Bay, about a mile west, CPR is nestled in a perfect environment to develop equipment for marine aquariums. CPR was started in a small garage in 1987 to produce biological filters for local aquarists. People who used CPR filters were impressed by the high quality and affordable prices. Word spread and the company grew. Since then, CPR has expanded to a 10,000 sq. ft. production facility and has developed many innovative products over the years. CPR is incorporating new ideas and technologies all the time. Their goal is to allow aquarists to place the highest performing products in their tanks at reasonable prices.



Experience Level: Beginner

sock holder

i do not like it at all. it does fit my tank but it WILL NOT stay tight so it leans down and when i try to tighten it it comes apart i ended up making something i must hot glue to my sump

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