Product Overview

The Sub-Zero 4204490 Water Filter & 7042798 Air Purification Cartridge Combo Pack is a genuine OEM maintenance solution designed to maintain peak performance in Sub-Zero built-in refrigerators. This dual-filter set improves water and ice quality while actively reducing odors inside the refrigerator—helping preserve food freshness longer.

Engineered specifically for Sub-Zero appliances, both components install easily, fit securely, and meet strict quality and safety standards.

What’s Included

• 1 × Sub-Zero 4204490 Refrigerator Water Filter

• 1 × Sub-Zero 7042798 Air Purification Cartridge

Sub-Zero 4204490 Water Filter

Key Benefits

• Helps reduce chlorine taste & odor, lead, and select contaminants

• Delivers clean, clear water and ice

• NSF/ANSI certified to Standards 42 and 53

• OEM-engineered for leak-free fit and consistent flow

• Designed for reliable filtration performance

Specifications

• Material: Carbon & fiberglass

• Certification: NSF/ANSI 42 & 53

• Service Life: Up to 6 months or 200 gallons

• Item Weight: Approx. 1 lb

• Compatibility: Sub-Zero built-in refrigerator models

Sub-Zero 7042798 Air Purification Cartridge

Key Benefits

• Reduces food odors and airborne contaminants inside the refrigerator

• Helps extend food freshness

• Designed to work with Sub-Zero’s air circulation system

• OEM-certified for safe and reliable performance

Specifications

• Type: Air Purification Cartridge

• Color: Black

• Condition: New, unused, original packaging

• Service Life: Up to 12 months

• Item Weight: Approx. 0.4 lb

Installation & Use

• Water Filter: Twist-and-lock installation inside the refrigerator

• Air Cartridge: Slides directly into the designated air purification compartment

• Tools Required: None

• Installation Time: Just minutes

Refer to your Sub-Zero refrigerator manual for exact placement.

Compatibility

Designed for all Sub-Zero built-in refrigerator models, including but not limited to:

• BI-36U

• BI-42S

• BI-36UFD

• BI-42SID

• IC-30FI

• IT-30CI

• PRO 48 (648PRO)

Always confirm compatibility using your refrigerator model number before purchase.

Why Choose This Combo Pack?

• Maintains original Sub-Zero performance

• Improves water, ice, and air quality simultaneously

• Reduces refrigerator odors and helps preserve food

• Genuine OEM parts ensure correct fit and reliability

• Convenient replacement solution in one package

Brand Assurance

Sub-Zero genuine replacement filters are designed, tested, and certified to meet the brand’s exact specifications—ensuring optimal refrigerator performance and long-term reliability.