RoClean™ L403, Calcium Carbonate Scale Removal - Avista™
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RoClean L403

RoClean L403 liquid is a multicomponent, low pH cleaner formulated to remove severe calcium carbonate scaling and moderate metal fouling and metal-organic complexes. RoClean L403 is the premium product for systems operating on seawater, brackish water, or wastewater. RoClean L403 is a highly effective foulant remover but gentle enough for daily application if required. RoClean L403 is NSF approved.

Performance Benefits

  • A specialized blend of buffers and chelants to dissolve metal deposits.
  • Effective low pH cleaner for scale removal and 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 L403
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.