The AQ-4050 is designed for aquarists who want the very best water for their aquarium. This “no-compromise” reverse osmosis-deionization system produces the purest water possible for aquariums. The AQ-4040 has five stages of filtration for maximum filtration efficiency. No other filtration system will strip out contaminants like the AQ-4050. The 1-micron filter cartridge protects the reverse osmosis membrane and improves water quality by removing sediment, insoluble iron and other solids that can foul the RO membrane. The 5-micron activated carbon block adds a second layer of protection by removing chlorine, chloramine and organic chemicals.
The thin film composite (TFC) reverse osmosis membrane removes algae promoting phosphates and silicates along with harmful nitrates. After passing through the RO filtration unit the water flows through two mixed-bed deionization (DI) cartridges. This special blend of ion-exchange resins scavenges any traces of nitrate, ammonia, phosphate, silicate and heavy metals like copper and lead.

The DI cartridges change color as they remove traces of contaminants that may slip through the RO membrane. The twin deionization cartridges add two extra layers of protection for your sensitive corals, fish and plants. The booster pump dramatically improves the efficiency of the RO filtration system, reducing wastewater and prolonging the lifespan of deionization cartridges. The automatic back-flush feature washes mineral deposits from the RO membrane, improving performance and extending the life of the TFC membrane. The automatic shut-off system can be used with RO storage tanks. The filtration system shuts off when the storage tank (optional) is full. The glycerin-filled pressure gauge indicates when the system needs maintenance. Two digital TDS meters monitor incoming water and filtered water quality. The twin TDS meters allow you to keep a close watch on your tap water quality and filtered water quality. The AQ-4050 protects your aquarium by insuring that your water quality is consistently pure and safe every day. If you’re serious about keeping a reef aquarium, fragging corals or raising sensitive fish, the AQ-4050 is the ideal water filtration system for you! The AQ-4050 includes a canister wrench and installation kit. Replacement cartridges, membranes and optional water storage tanks are available.

When you choose an APEX water filter, you’ll get the absolute best water filter system for your needs from a company that values your business and will go above and beyond to ensure your full satisfaction.

Not only can you feel good knowing that APEX Water Filters gives Americans good-paying jobs, but you can also be certain that we carefully monitor each step in the manufacturing process because we produce our filtration systems locally.

If for any reason you’re not completely satisfied with an APEX Water Filter, we’ll replace it or refund the purchase price–no questions asked.

At APEX Water Filters, we believe that the best water filters start with the best materials. That’s why we only use carbon that is certified by the National Safety Foundation and components that are approved by the U.S. Food and Drug Administration.

Before a water filtration system leaves our facility, we test it to ensure that it meets our high quality standards. This extra step ensures that you receive a filtration system in the best possible condition.