Instruct: Classify a review as either positive or negative.
Query: Works great

This was one of the only fully submersible in-line clarifiers I could find, and it was reasonably priced here. Unlike some reviewers, I had absolutely no problem hooking it up to my Pondmaster filter and pump with standard 1" tubing. Easy to set up and cleared up my small pond within 3 days. The glowing ring is very helpful to let you know it's working.