Pond Filter In External Filter

[Nitin]

can i use these in my external filte rif i cut them out?

http/www.amazon.co.uk/FILTER-SPONGES-THREE-COARSE-MEDIUM/dp/B000S5N2BQ/ref=sr_1_2?ie=UTF8&s=kitchen&qid=1262911309&sr=8-2

or

http/cgi.ebay.co.uk/FISH-POND-FOAM-FILTER-SPONGE-SET-17-X-11-MEDIA_W0QQitemZ180406204906QQcmdZViewItemQQptZUK_HomeGarden_Garden_PondsWaterFeatures_UK?hash=item2a010c39ea

thanx

 

[OldMan47]

I can see no reason that you couldn't use the raw material being sold in an external filter, if you cut it to the right size.