Pentair Everpure 4CM Mineral Addition Replacement Cartridge

Pentair

RO water is clean. But clean isn't the same as ideal for espresso.

The Pentair Everpure 4CM Mineral Addition Cartridge remineralizes RO-treated or low-TDS water — adding the calcium profile that makes soft water taste like espresso water.

The Details

Mineral Addition

Adds calcium carbonate to low-TDS water — rebuilding the mineral profile that reverse osmosis removes and that espresso extraction requires.

Low-Hardness Water Solution

Designed specifically for soft water regions and post-RO installations where source water TDS is too low for optimal coffee extraction.

Flavor Optimization

The right mineral content doesn't just soften water — it improves extraction. Add the minerals that draw out sweetness, brightness, and clarity.

EZ-RO Integration

Works directly with Everpure EZ-RO systems to add minerals downstream of the RO membrane — a complete, calibrated water treatment workflow.

Questions? We're here to help. Call us at 323-592-3303 or chat with our team — we'll help you find the right system or replacement for your setup. Authorized Dealer. Expert Support. Every Machine. Coffee Machine Depot is an authorized dealer with hands-on experience across every machine we sell. Our team helps with selection, installation guidance, and ongoing support — call us at 323-592-3303. Financing available through Click Lease and our other financing partners for qualifying purchases.