Wolf3101;1205043; said:Actully I can think of a dozen or more other filters that have remained unchanged as long or longer just off of the top of my head...not that it really maters.
You can? I cant. The major canister players in the UK are Eheim, Fluval, Rena, Cascade, Hydor.
Cascade are very new and only been around for a couple of years, Rena do seem to still be using the XP series they've always used for around 7 to 8 years, Fluval have upgraded now to the 05 series from the 03 and 04 series, Hydor(used to be called someone else) still use the same basic design but with upgraded features.