Eheim 2617710 Filter Set For Pro 4 Series

While the filter sponges need periodic replacement, provided your tank isn't too dirty, the filtration sponges last a long time, especially if you rinse them in tank water during routine cleaning and maintenance.

Been buying from tech den for a while now. Service is great and my deliveries are always on time. A day or so earlier in some cases.

Always have prompt, efficient and helpful service from Tech Den. Never had any problems. The lollies are a nice extra in every order. The products are always top quality and reasonably priced.