Replacement Sponges

Hydro™ Replacement Sponges
Don't use these! Our Premium Sponge on a Hydro

Don't use these! Our Premium 6 inch Sponge on a Hydro

Our Premium Round 4.25 inch Sponge on a Hydro Filter Our Premium Round 6.25 inch Sponge on a Hydro Filter Our Premium Round 6.25 inch Sponge on a Hydro Filter

Enter Qty in each box
 4.25" x 4.25" x 4.25" Replacement Sponge Cube  - 15ppi Blue  $3.75
 6" x 6" x 4.25" Replacement Sponge Cube - 15ppi Blue  $6.75

 4.25" x 4.25" x 4.25" Replacement Sponge Cube - 30ppi Black  $3.75
 6" x 6" x 4.25" Replacement Sponge Cube - 30ppi Black  $6.75

 4" x 4" x 4.25" Replacement Sponge Cube - 50ppi Black  $3.50


Make the smart switch to these "Pro-Level" Reticulated sponges for easier cleaning, more efficiency, much longer sponge life and more pore-size options. Using our sponges is an inexpensive way to super-charge your Hydro™ filters.

We may compress these during shipping to avoid "Oversize" charges.  Let them sit out for a day after receiving them and they will regain their original shape.


Replacements for Old-style filters

Old-style sponge filter Old-style sponge filter Old-style sponge filter lift tube Our Replacement Premium Sponge

Enter Qty in each box
 4.25" x 4.25" x 1.5"  Replacement Sponge - 15ppi  $2.25
 5" x 5" x 2"   Replacement Sponge - 15ppi  $2.75
 4.25" x 4.25" x 1.5"  Replacement Sponge - 30ppi  $2.25
 5" x 5" x 2"  Replacement Sponge - 30ppi  $2.75
 4" x 4" x 1.5"  Replacement Sponge - 50ppi  $1.95
 5" x 5" x 2"  Replacement Sponge - 50ppi  $2.75


The old-style lift tubes will work fine with either the 1.5" or 2" replacements.

There were literally tens of thousands of these small low-profile sponge filters sold in the past. Some were square, many were triangular and other were a cloverleaf shape. They ranged from 1.5" to 2" thick. The lift tube came out of a 1.5" dia. weighted base. You can put either the 1.5" or the 2" thick sponge on any of these bases. Most used substandard urethane foam and would work much better with an upgrade to our Premium Reticulated Foam that we offer here. For a very small amount of money you can turn these into a really decent sponge filter.


If you do not see a box with Tabs below it means your display is too small for this feature to work. For this additional information you should view this on a device with a larger display.
  • Description
  • Shipping
  • Articles
  • 4" x 1.5" sponge has a volume of 24 cubic inches
  • 5" x 2" sponge has a volume of 50 cubic inches
Shipping Quotes

The shopping cart will enable you to get a shipping quote before paying for an order. Simply add the items to the cart, view the cart by clicking on the "view cart" link in the upper left corner and it will enable you to get a total for the shipping before committing to an item.

Learn more about this product in these articles.


Please enter your full name when making a comment.



Show Form
Comments
 
Everyone should use this replacement. I call it miracle foam.
Theo Lange, Tue Aug 26, 2014
 
I ordered the 2" replacements for my old filters. I can't believe how much better they now work wit this foam. I nver would have guessed that foam was that important.
Pete Emerson, Sat Mar 22, 2014
 
Can't recommend a product more than this. They work so much better than the stock sponge!
Neil Sherwood, Sat Feb 22, 2014
 
I replaced all my stock hydro sponges with these and I'm glad I did. They work fantastic.
Joe Ullman, Wed Oct 02, 2013
 
These replacements are the best. What a difference they made for me. Thankyou
Dean Cummins, Wed Aug 14, 2013