The AquaFX Dolphin RO 100GPD system is a high-performance reverse osmosis unit designed to deliver exceptionally pure water for all your aquarium needs. This robust 3-stage filtration system efficiently removes harmful impurities, excess calcium, chlorine, and chloramines from your tap water, making it ideal for sensitive freshwater environments, planted tanks, and critically, as the foundation for clean top-off and mixing water in saltwater reef aquariums. It ensures your general hardness levels are appropriate and provides the pristine water quality essential for thriving aquatic life.

Hand-built with precision in the USA by AquaFX, this system features a durable heavy-duty aluminum bracket and convenient quick-disconnect fittings (1/4" OD) for easy installation and maintenance. Its advanced filtration includes an AquaFX Premium 1 micron Sediment Filter, an AquaFX Chlorine Guzzler Carbon Block Pre-filter, and an AquaFX TFC RO Membrane, all working in concert to produce up to 100 gallons per day of purified water. A built-in pressure gauge allows for easy monitoring, and the system offers customizable carbon options to tackle specific disinfectants like chloramine or traditional chlorine in your local water supply.

Whether you are a dedicated freshwater hobbyist seeking to soften water for cichlids or a reef keeper requiring ultra-pure water for your delicate corals and fish, the AquaFX Dolphin RO 100GPD is an indispensable tool. Recognized for its reliability and performance, it is the go-to unit for ensuring a stable and healthy aquatic environment, from routine top-offs to preparing new saltwater batches, providing peace of mind for every level of fish keeper.