Spectrapure MEGA MaxCap 90GPD-MF 5 stage RODI w/ dual tds, ASO and membrane flush

The SpectraPure MEGA MaxCap 90GPD-MF is a five-stage RO/DI system for preparing aquarium water. Sediment and carbon pretreatment protect the reverse-osmosis stage, followed by two deionization stages that polish the product water. The listed configuration includes dual TDS monitoring, automatic shut-off and a manual membrane-flush function.

Use the readings to follow membrane performance and DI exhaustion instead of replacing every stage on one fixed schedule. The nominal 90-gallon-per-day rating depends on operating conditions; colder water and inadequate feed pressure can reduce output. Allow space for cartridge service, route the waste line correctly and follow the model's installation and flush instructions.