Extremely happy with my Avast Marine products
Avast has always had the top notch products and customer support. For any of your reef tank equipment needs, do not hesitate, and use Avast Marine! You will not be disappointed!
Two thumbs up!
Had some issues building it, I did not use enough glue. Was a easy fix and had it up and running in no time. My PH is now always above 8.0. Very happy with it.
Great products and service!
The Kalk K2 Stirrer was easy to assemble and works great. Can’t go wrong with Avast products. Their customer support is also fantastic, replies same day on and off normal business hours.
Good product. The build instructions were excellent. The motor is very quiet and I'm getting good results in my aquarium. The Ph is much improved and I have a clean top off reservoir that isn't full of messy Kalkwasser
Unit delivered with bad motor great customer service had replacement motor in 4 days. Only issue is stirrer hole larger than supplied making had to keep at correct angle. Mine ended up slightly off, however seem to work OK.