I now purchase my filters from Mars Med Supply. Why, because of the perfect fit to my machine and because the quality and price is there. I can buy a 2 pack with the tube that goes to the C-Pap machine for the price of one . I have to replace the filters every 6 months per So Cleans recommendations. This got very costly for me. Now I can have a new filer in my machine and have one for the next change. Mars ships fast, I get to purchase quality filters that fit perfect in a 2 pak and the price is great. I have never had any problems with these filters.
A Trusting Customer, June Mazmanian