407 External Aquarium Filter Amazon Manufactured from robust stainless steel

Manufactured from robust stainless steel mesh with ¾" stainless banding

Selenium Yeast

- Oase AquaMax Eco Expert 21000 - 44000

Yes  as long as it is turning the water over approximately 2-4 times an hour for goldfish or 1-2 times an hour for koi

This is a replacement Impeller for the Hozelock EasyClear 3000

407 External Aquarium Filter Amazon Manufactured from robust stainless steelThe all new 07 series marks the 7th incarnation in nearly 4 decades of Fluvals top selling canister filter family worldwide. Not only does the latest generation incorporate the power and reliability youve come to expect from the leader in aquatic filtration, but it also features several new performance upgrades that make it up to 25% quieter and more robust, energy efficient, flexible and easier to use than ever before. eTEC (Efficient Technology) is