Culligan AC-50 & LC-50 Aqua-Cleer


This high-flow, 4 stage RO system uses sediment and carbon block pre-filters to reduce chlorine, chlorine by-products and sediment larger than 5 microns before the 50 GPD RO membrane filters out impurities larger than .001 microns. The carbon block post filter treats for taste and odor. Because the required membrane has been discontinued, we hightly recommend converting to the PuROTwist PT4000T50-SS-RK to keep your old tank and spout with the same high quality water you have come to expect.



  • STAGE 1 – Sediment Pre-Filter (RS-23-SED5) – Replace Every 12 Months
  • STAGE 2 – Carbon Block Pre-Filter (32-175-050-100) – Replace Every 12 Months
  • STAGE 3 – DISCONTINUED - RO Membrane TFM 50 GPD (1224437) - Replace Every 24 Months - Recommend converting system with the PuROTwist PT4000T50-SS-RK for continued use
  • STAGE 4 – Inline Carbon Block Post Filter (K2333-KK) – Replace Every 12 Months

PDF iconCulligan AquaCleer LC-50 System Manual