RoClean™ P903 Low pH RO Membrane Cleaner - Avista™
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RoClean P903


Avista RoClean™ P903 vs Citric Acid | Cleaning Study: Removal of Metallic Inorganics + Organics


RoClean P903 is a low pH, fast-acting cleaner designed to remove iron, manganese, aluminum, metal-organic complexes, clays, phosphate scale, and colloidal material from reverse osmosis (RO) membranes. Compared to other marketed metal cleaners, RoClean P903 does not contain any materials that could emit noxious odors. RoClean P903 is successfully applied to systems operating on seawater, brackish water, or wastewater. RoClean P903 is NSF approved.

Performance Benefits

  • Contains a proprietary blend of buffers, chelants, and reducing agents to dissolve metals and phosphate scale and disperse clays and colloidal material.
  • Maintains optimum pH over a wide temperature range.
  • Highly buffered to resist pH changes during the cleaning process.
  • Compatible with polyamide membranes from all membrane manufacturers.
  • Suitable for use with other Avista cleaners.


Product packaging and labels may vary. These images represent packaging and labels for products manufactured and fulfilled by Avista Technologies Inc. in the United States.

Product Data Sheet
Download Product Information Sheet – RoClean P903
Safety Data Sheet

If you would like to request a Membrane Cleaner Material Safety Data Sheet, please email Avista Compliance and Regulatory at, call your regional distributor, or click to submit your request.