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Pre Filter Sponge

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$3.99
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$3.99
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  • Prevents small animals and debris from getting sucked up
  • Increases filter capacity
  • Uses coarse foam to extend time between cleaning

The pre-filter or intake sponge is a simple foam cylinder that is designed to slip over the intake tube of hang-on-back (HOB) and canister filters. The filter intake tube often has large openings, so use a pre filter sponge to prevent fish, shrimp, and sizable debris from getting sucked up and ruining the filter motor. Not only does an intake sponge clear up your water, but it also provides valuable surface area to grow beneficial bacteria.

Find out which sponge size to get and how to properly fit it to your hang-on-back or canister filter intake by viewing the Sizing Chart and Video below. (Click the "Show More" button to expand the Directions/Specifications section.)

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Increased Filter Efficiency

Prevent Fish, Snails, and Food From Being Sucked Up

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Easy To Clean and Reusable

Proper Fitment

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Fits Most Filters

Customer Reviews

Based on 2610 reviews
95%
(2481)
3%
(74)
1%
(23)
0%
(13)
1%
(19)
K
Kris K. (Starkville, MS, US)
Large Prefilter

This large prefilter fits the aquaclear 110 perfectly. Love the porosity of this filter!

A
Andrew N. (Lehigh Acres, FL, US)
Dirted aquariums and sponge filters are a great match!

I have 2 planted 75 gallon aquariums, both dirted. I’ve used hang on the back filters and have the fluval Fx canister, but I rely entirely on these sponges and the Aquarium Co Op powerheads for one of my tanks and love the ease of use, the ease of maintenance, the extra biological filtration, the ability to remove cycled sponges for treating tanks and starting new ones. These are durable and more than adequate for all but microscopic mechanical filtration.

M
MICHAEL V. (Coal Valley, IL, US)
Pre filter sponge

Sponges fit great and do not seem to cut the flow rate at all . Will purchase again.

C
Carsandfish (Coleman, MI, US)
Great prefilters

I am using 7 of these and they work well and last well.

s
stefen s. (Martinsburg, WV, US)
Good intake sponge

Fits perfectly and doesnt clog.