Everpure and Omnipure appear to be the same company, as part #'s are the same. Yes, replacement cartridges are expensive. It is because they have such a large capacity, mine is 7,000G. Of course we will never approach that capacity in one year, so when we store the MH for more than a month I remove the cartridge, drain it, then put in in the deep freeze until needed. Everpure does sell a 2-pack of 1/2 size cartridges for vacationers for about $10 more than the large cartridge, which is designed for full-timers. The head will be either a QL2 or QL3, Filtersfast.com
sells replacements that fit both heads.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"