I do like the product but I find the pricing to be quite steep compared to the jobber brand available. The problem is that if I bought a comparable cheaper cartridge which you say will work will the unit accept it. I have tried this in the past and it literally trashed my unit which I took to a repair shop to have fixed and it was screwed. I had to purchase a new unit which made the cartridge very expensive.Please reply back to my inquiry. Thanks Doug.