Culligan Filter Replacement: Managed Service vs. DIY
Culligan under-sink RO filter replacements are scheduled automatically by the local Culligan dealer under service contracts -- the technician arrives annually, replaces all pre-filters and the post-carbon stage, checks the membrane, and tests output water quality. Annual service visit cost (included in service contract): $80--$150 per year. DIY Culligan filter replacements: Culligan OEM replacement cartridges for the Aqua-Cleer are available through Culligan dealers and some Amazon listings at $30--$60 per stage annually. Culligan faucet filter (US-4) replacement cartridges (RF-14): $12--$18 per cartridge at Target, Walmart, and Amazon -- 200-gallon life (approximately 2 months for daily use).