3M HF20-S (5615103) 3M™ Water Filtration Products Replacement Cartridge

Keep the ICE120-S working on the filtration plan it was built to use.

The 3M HF20-S is the specified replacement cartridge for the 3M ICE120-S commercial ice machine filtration system. It renews the system’s filtration and scale-inhibition media without replacing the head assembly. IceMachinesPlus offers this cartridge with a 30-Day Price Match Guarantee, adding some reassurance when it’s time to reorder.

Confirm HF20-S and catalog number 5615103 before buying because HF20-SI, HF20-S-SR, and HF20-MS have different specifications and applications. Then verify that the operating limits below match the system and maintenance plan already in place.

The 9,000-gallon figure is a rated maximum, not a guaranteed service life. Sediment load, water chemistry, consumption, and plumbing conditions can shorten it. Replace the 3M HF20-S early if flow drops or ice develops an unexpected taste or odor.

Used in the ICE120-S system, the cartridge supports certified reduction claims for Class I particulate, chlorine taste and odor, and filterable cysts. Its nominal micron rating is 0.5. The media includes an activated carbon block for chlorine taste-and-odor reduction, while the scale inhibitor reduces the ability of calcium and magnesium to form hard scale. The 3M HF20-S doesn’t soften water or remove all dissolved minerals, so unusually hard water may require additional treatment. Compare the manufacturer’s HF20-S performance data with the site’s water quality.

For a controlled cartridge change:

• Shut down the connected equipment, and follow the system instructions for isolating or venting the water supply.
• Support the used cartridge from below because it will be heavier when full of water.
• Turn the cartridge one-quarter turn to the left, and pull it down from the head.
• Remove the sanitary cap from the new 3M HF20-S, insert the cartridge, and turn it to the right until it is secured.
• Restore the water supply, check the head and connections for leaks, and flush 3 gallons through the new cartridge before use. At the rated flow, flushing takes about two minutes.
• Record the installation date and meter reading, if available.

The Sanitary Quick Change design keeps the media enclosed and doesn’t require a filter wrench. The ICE120-S valve-in-head design shuts off and vents the water during a change. Keep a towel nearby for residual water, and inspect the head, tubing, and fittings before returning the ice machine to service.

Filtration and cleaning solve different problems. The 3M HF20-S treats incoming water, but it doesn’t remove existing scale or sanitize the ice machine. Keep cartridge replacement on the same maintenance calendar as descaling and sanitizing. Our ice machine water filter replacement guide covers change-out planning, while the commercial ice machine cleaning guide covers descaling and sanitation.

Use the system only on a cold drinking-water line, protect it from freezing, and don’t place it outdoors or in direct sunlight. The 3M HF20-S isn’t intended to make microbiologically unsafe or unknown water safe. Use adequate disinfection when required, and test uncertain incoming water.

The current manufacturer page notes an ongoing transition from 3M-branded water filtration products to Aqua-Pure™, so packaging and branding may vary. Match 3M HF20-S and 5615103 rather than relying on the logo alone. If the existing system isn’t an ICE120-S, compare compatible ice machine water filtration systems instead of assuming a similar-looking cartridge will fit.

A few practical questions about the 3M HF20-S are worth answering before installation.