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AF-5001 Reverse Osmosis 4 Stage Water Treatment System

  • $ 16999
  • Save $ 8000


The Anchor 4-Stage Reverse Osmosis Water Filtration System is guaranteed to meet your filtration needs. All of the Anchor water filters feature National Safety Foundation (NSF) certified filter media.  With Anchor water filters there are no more unpleasant odors and no chlorine taste, just clean refreshing water. Anchor water filters are also great for use in making coffee and tea, cubed ice and cooking.

  • High quality NSF/FDA approved components
  • Each individually wet tested and sanitized
  • Stage 1 – 1 micron polypropylene sediment pre-filter to extract suspended materials such as sediment, rust, insects, and other particles down to 5 micron (replace every 6 to 8 months)
  • Stage 2 and 3 – double activated carbon and catalytic block filters to reduce chloramines – the by-product of chlorine and ammonia used in water disinfection
  • Reduces organic chemicals: pharmaceuticals, herbicides, pesticides, volatile organic chemicals, MTBE, disinfectant by-products and other chemicals for improved taste and elimination of odors
  • Double carbon briquettes filter out organic matter from water without release of carbon fines
  • Carbon block prepares water to enter the reverse osmosis element (replace every year)
  • Stage 4 – the high- rejection (up to 95%) TFC (thin-film composite) 50 GPD membrane to reject a wide range of total dissolved solids (TDS)
  • Product water is in storage tank, while the reject water (drain) is automatically flushed down the drain (replace every 2 to 3 years)
  • Each reverse osmosis system comes complete, ready to install, and the following installation kit: purification unit, tank, faucet, wrench, Teflon tape and manual
  • Age of the filters depends on GPD consumed and quality of feed water
  • Premium quality parts

 Note: Turn off the system before servicing or inspecting.





Milky colored water

√      Air in system

o Air in the system is a normal occurrence with initial startup of the RO system. This milky look will disappear during normal use within 1 to 2 weeks.

Noise from faucet

√      Air gap faucet

√      Location of drain saddle 

√      Restriction in drain line

o Will disappear after system shut down

o Relocate the drain to above water trap. 

o Blockage sometimes caused by debris from garbage disposal or dishwasher

Small amount of water from RO drinking faucet.

√      System just starting up 

√      Air pressure in the storage tank is low.

o Normally it takes 2–3 hours to fill tank. Low water pressure and/or temperature can reduce production rate.

o Add pressure to storage tank. The pressure should be 8–10 psi when the tank is empty

Slow production or no water from RO drinking faucet.

√      Low water pressure

√        Crimps in tubing

√      Clogged pre-filters

√      Fouled membrane

o Add a booster pump.

o Make sure tubing is straight.

o Replace pre-filters.

o Replace membrane.

Water taste or smell offensive

√  Post carbon is depleted.

√  Fouled Membrane

√  Sanitizer not flushed out

o Replace post carbon.

o Replace membrane.

o Drain storage tank and refill it overnight.

No drain water

√ Clogged flow restrictor

o Replace flow restrictor.


√ Fittings are not tightened. √ Twisted O-ring

√ Misalignment of hole in the drain saddle valve.

o Tighten fittings as necessary.

o Replace the O-ring.

o Realign drain saddle valve.


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