AvistaClean™ L1221 - Avista Membrane Treatment Solutions
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AvistaClean L1221

AvistaClean™ L1221 is a high pH, liquid cleaner free of EDTA and phosphate and formulated to remove humic and fulvic acids, aluminum silicate clay, colloidal material, mild silica scaling, and bioslimefrom microfiltration (MF) and ultrafiltration (UF) surfaces and pores. AvistaClean L1221 has been successfully used on municipal water, well water, and surface water. AvistaClean L1221 is NSF certified.

Performance Benefits

  • Effective in removing humic and fulvic acids.
  • Disperses colloidal particles, aluminum silicate clays, colloidal silica and silt from MF/UF surfaces and pores.
  • Highly buffered to resist pH changes during the cleaning process.
  • NSF certified for off-line use in systems producing drinking water.


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 – AvistaClean L1221
Safety Data Sheet

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