has anyone used these filters before? if so are they worth it? not a bad price atm at shirley aquatics. also can they be fitted inline on a hose and used when refilling from the tap or do they need much slower flow?
http
/www.shirleyaquatics.co.uk/product-detail.cfm?theProdID=C4FAE4B7-FD37-2418-D33EC31134E015BF
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