No one compares to Spectrapure. They specially treat all their RO membranes to improve their performance then either batch test or individually hand test them with their Select series which are guaranteed 99% rejection rate in writing. No one else in the industry offers that. This is extremely important to you since for every 2% you can improve the membrane performance you double the life of your DI resin.
The are also the only vendor to custom blend all their own DI resins in house based on thousands of hours of real world testing so they are only the best and freshest for our applications. The are one of only a few to use much better absolute or near absolute rated, low micron sediment filters to protect the pores in the carbon block so it can do what it is supposed to and not act as a sacrificial sediment filter making up for what the higher micron absolute rated filters miss. The also use only capillary tube flow restrictors which the end user can adjust for the perfect waste ratio for their unique water conditions and much more. 30+ years of research and development in the industry really makes a difference. Having owned now 7 systems I will not buy my RO supplies anywhere else, they wouldn't last as long and would end up costing more.
