WATERS REFILLABLE RESIN COLUMNS are a low-cost alternative to disposable cartridges. Optional auto shut-off quick disconnect kits available for most models. Each column includes an initial charge of pre-measured color-indicating hydrogen-form cation resin.

• Models W7901L/S: Our most popular sizes. Narrow design for plug flow.
  
• Models W7902(A): Refillable columns for IWT Metex II simple and duplex mounting bracket assemblies.
  
• Model W7903: Refillable column for CH16D Larson Lane Condensate Analyzer assembly.
  
  
  Bulletin W7901