I dont know why am I giving this UV filter 4 stars, probably because it feels a bit cheap, but I feel I am being a bit unfair. This things works great and does exactly what it says in the box.

So apart from feeling cheap everything works better than fine. Oh, one thing, the packaging is not as "tight" as with other items I have bought here. Nothing you can probably do about it thought but bear in mind.

very happy with the product, i have been using it for two weeks now with my reef tank and can see much less alge growth.
the price is less then half what i would of paid where i live.

Great product,works fantastic,great service!

very good fot its price

Even if it has no spiral in it, this UV sterilizer seems to work as well as the more expensive ones. Just be careful of the water flow!

Je vois pas la difference avec un plus cher

serius people

Good function. A little to big, but very effective.

good product

La he acoplado a un filtro para que el agua pase por el. De momento funciona bien. Es un poco grande, pero como todos me parece a mi, solo que mas barato.

It's working connected to external filter. For the moment it works ok. Quite big, but as others are, just cheaper.