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Re: Open-Celled Foam


I buy all of my open-celled foam locally.  Look in the yellow pages 
under "Foam" - their customers are mainly looking for foam for 
furniture cushions or packaging.  The articulated (?) foam comes in 
various very large pore sizes and makes nice pre-filters and coarse 
filters.  I also use it as filters for bulkhead tank overflows to 
keep small fish from going through the exit fitting.  Standard 
open-celled foams are available in smaller pore sizes.  Prices are 
cheap -  if I remember correctly, approximately $6 for a roll 3' x 
10' (which is almost a lifetime supply).