Often, the price of refill cartridges is deplored and I admit you get them now not just thrown at, but at least 6 family pack they are quite affordable. I come to about 0.15 euros per day and cat that is on comfort now truly not worth mentioning. 1 cassette holds here at two domestic cats about a month and includes as promised very well smell a; Even if the bag is only about once a week is emptied. The statement that at the end of the hose is drawn with a marker, however, you should not better be trusted and who always have spare.
