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Sub-Zero 7012333 UC-15I UC-15IO Undercounter Water Filter
Sub-Zero

Sub-Zero 7012333 7042803 UC-15 UC-15I Water Filter | Compatible Manitowoc K00374 AR-2800 SM-50 | Sub-Zero Undercounter Refrigerator

$53.95 - $269.75
MPN:
7012333
Condition:
New
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Sub-Zero 7012333 Undercounter Ice Maker Water Filter

⚠️ Ice Maker Filter Only — Not for Sub-Zero Refrigerators: The Sub-Zero 7012333 is designed exclusively for Sub-Zero UC-15 undercounter ice makers. This filter will NOT fit any Sub-Zero full-size refrigerator. For Sub-Zero refrigerator water filters, see the 4204490 or 4290510 models instead.
ℹ️ Updated Part Number: Sub-Zero has updated the part number for this filter from 7012333 to 7042803. Both numbers refer to the exact same filter. If your ice maker shows 7012333, ordering either 7012333 or 7042803 will give you the correct replacement.

Product Description

The Sub-Zero 7012333 is the genuine OEM water filter for Sub-Zero UC-15 series undercounter ice makers. Designed specifically for Sub-Zero's luxury undercounter ice makers, this filter ensures every batch of ice is clear, fresh, and free of chlorine taste, odor, sediment, and hard scale buildup.

Maintaining a clean filter in your Sub-Zero ice maker is one of the most important steps in keeping the unit running efficiently. A clogged or expired filter reduces water flow, strains the ice maker's internal components, and affects the clarity and taste of your ice. Replacing the filter on schedule keeps your ice maker performing at its best and protects your investment for years to come.

The filter uses an activated carbon block design with a push-in quarter-turn locking mechanism. When not locked correctly, water will not flow — ensuring the filter is always properly seated before use.

Key Features

  • Chlorine Reduction: Reduces chlorine taste and odor for clear, great-tasting ice
  • Hard Scale Reduction: Reduces hard scale buildup that can damage internal components of your ice maker over time
  • Sediment & Particulate Filtration: Removes rust, sediment, and other particulates for clearer, cleaner ice
  • NSF Certified: Tested and certified to NSF/ANSI Standard 42
  • 2,800-Gallon Capacity: Exceptional high-capacity filter lasting up to 2,800 gallons
  • 6-Month Replacement Cycle: Sub-Zero recommends replacing every 6 months regardless of gallon usage
  • Activated Carbon Block: 0.5 micron activated carbon block for precise filtration
  • High Flow Rate: 0.75 GPM to support the ice maker's production demands
  • Tool-Free Installation: Quarter-turn push-in locking design — no tools required
  • Auto Water Shutoff: Water automatically shuts off when filter is removed — no mess during replacement
  • Dimensions: 9.75" L x 2.38" diameter
  • Operating Specs: 35°F-100°F temperature range
When to Replace: Replace every 6 months, after an extended shutdown or vacation period, or when the red "REPLACE FILTER" indicator light illuminates on your UC-15 control panel — whichever comes first.

Compatible Ice Maker Models

This filter is designed exclusively for the Sub-Zero UC-15 series undercounter ice makers. It is also compatible with select Manitowoc commercial ice maker models that use the same filter housing.

Sub-Zero UC-15 Undercounter Ice Makers

UC-15UC-15IUC-15IO UC-15IPUC-151UC-151P

Compatible Manitowoc Ice Makers

K00374K00374001AR-2800SM-50
Not Compatible With: Sub-Zero full-size refrigerators, Sub-Zero wine storage units, or any other Sub-Zero appliance. For Sub-Zero refrigerator filters, the correct models are 4204490 (standard) or 4290510 (PRO 48 series). These are completely different filters with different housings.

Alternate Compatible Part Numbers

7012333, 7042803, 4204520, UC-15I, UC-15IO, K00374, K00374001, AQF-7012333, AQF-70012333

Installation Instructions

  1. Locate the Filter: The filter is located beneath the ice maker, accessible by lifting the front grille assembly. Pull out on the bottom edge of the grille and tilt it forward to access the filter housing
  2. Remove Old Filter: Twist the old filter a quarter-turn counterclockwise, then pull it straight down and discard. The water will shut off automatically when the filter is removed
  3. Transfer the Knob: Remove the reusable color-keyed knob from the end of the old filter and attach it to the new filter
  4. Install New Filter: Push the new filter firmly and straight up into the receiver, then turn clockwise until it locks into place. Important: The filter must be pushed firmly and locked correctly — if not locked, water will not flow
  5. Flush the System: Run water through the ice maker for 3-5 gallons before use to flush air and activate the carbon block
  6. Replace the Grille: Tilt the grille back into position and snap it closed
  7. Reset Filter Indicator: Reset the filter indicator light on the UC-15 control panel per your owner's manual
? Installation Tip: Do not use any tools to install this filter. The filter must be pushed firmly and fully into the receiver before turning to lock. If you feel resistance when turning, remove the filter and reinsert it straight before attempting to lock again. A correctly installed filter will have water flowing immediately when locked.

Replacement Schedule

Condition Action
Every 6 Months Replace filter — Sub-Zero's recommended standard schedule
After 2,800 Gallons Replace filter (whichever comes first: 6 months or gallon capacity)
"REPLACE FILTER" Light Illuminates Replace immediately — the UC-15 control panel indicator has activated
After Extended Shutdown Replace filter after any long period of inactivity or vacation shutdown
If Ice Appears Cloudy Replace immediately — cloudy ice is a sign the filter needs changing
If Flow Rate Decreases Replace immediately — a decrease in flow rate indicates the filter is saturated

Frequently Asked Questions

Will this filter work in my Sub-Zero refrigerator?

No. The 7012333 is designed exclusively for Sub-Zero UC-15 undercounter ice makers. It will not fit any Sub-Zero full-size refrigerator. If you have a Sub-Zero refrigerator, you need the 4204490 filter (for most models) or the 4290510 filter (for PRO 48 series models) — both of which are completely different in shape and design.

What is the difference between 7012333 and 7042803?

They are the exact same filter. Sub-Zero updated the part number from 7012333 to 7042803. The filter itself is identical — same design, same filtration media, same compatibility. If your ice maker uses 7012333, either part number will give you the correct replacement filter.

Why does the water not flow after installing the filter?

This is the most common installation issue with the 7012333 filter. The filter must be pushed firmly and fully into the receiver before turning to lock. If the filter is not locked correctly, the internal valve remains closed and water will not flow. Remove the filter, reinsert it straight, push firmly upward, and turn clockwise until it stops. You should feel a definite stop when it is correctly locked.

Is this filter compatible with Manitowoc ice makers?

Yes. The 7012333 filter is also compatible with select Manitowoc commercial ice makers including the K00374, K00374001, AR-2800, and SM-50 models, which use the same filter housing design.

How do I know when to replace the filter?

Replace every 6 months as a standard schedule. Your UC-15 ice maker will also illuminate a red "REPLACE FILTER" indicator light on the control panel when it is time for a new filter. Additionally, replace the filter immediately after any extended shutdown, or if you notice cloudy ice, off-taste, or reduced water flow — any of these are signs the filter needs changing.

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