aqua_chem
Aquarium Advice Addict
But I would expect that any company selling a uv filter combo would have spent time and money researching the right unit to match the filter flow...
Companies are starting to add UV sterilizes because people think they need it or that it inherently helpful. In fact, most of the UV filters (including the canisters and HOB) are largely gimmicks designed to sell units. Many of the designs are inadequate for good UV sterilization.