Sponge Filters
Slate base 15ppi Sponge filter
Internal-weight sponge filter
Internal-weight 30ppi sponge filter
30ppi Mag Sponge Filter
30ppi Slate Bottom Sponge Filter
50ppi Slate Bottom Sponge Filter
15ppi Mag Cube Filter
PPI Comparison

Filter - Cube Sponge Filter

Regular price $5.45
Shipping calculated at checkout.

Made from our Pro-Level Reticulated Foam, specifically suited for colonizing nitrifying bacteria at the highest levels in aquariums.

The current lift-tube color is a dark green.  The Slate bottom filters have a round slate attached to the bottom. 

As you can see from the list below, a 4.25" cube contains a lot more foam than a 4" one - over 20% more!

  • 3" cube filter has a volume of 27 cubic inches
  • 3.25" cube filter has a volume of 34 cubic inches
  • 4" cube filter has a volume of 64 cubic inches
  • 4.25" cube filter has a volume of 77 cubic inches
  • 5" cube filter has a volume of 125 cubic inches

Sponge Filter Details:  Please read here

On the fence about this Filter - Cube Sponge Filter? Don't be. Rest assured that your satisfaction is our first goal.

Inventory Last Updated: Apr 21, 2024

Customer Reviews

Based on 16 reviews
jules birnbaum
Simple and efficient

I wanted a simple connect and disconnect lift tube since air hoses tend to get very hard after a year or two and are hard to reconnect. pI also wanted a high quality sponge material since I clean my sponge filters every 6 months in my slop sink. When servicing 30 tanks the fewer parts to deal with makes maintenance easier and quicker . I highly recommend this sponge filter.

herbert kolbe

nice filters easy to handle and they work great

Alan Teraoka
Very good filter

Very good and simple filter. I like the one with the slate bottoms.


Shipping was terrible , UPS gave me a run around for 3 days past when it was supposed to be delivered, that is out of angelsplus control tho , other then that there amazing !

Michael Martin
Works great

Skipped the airpump and pushed the sponges into the water intake of small, hang on the back power filters. Total quiet.