Sub-Zero
Catalog S456
Sub-Zero Water Isolation Valve PRO Series
In Stock
$239.25
Item subtotal: $239.25
Free UPS Ground in the 48 contiguous states. AK/HI shipping is calculated at checkout. Expedited shipping is available.
Part Order Guarantee
Every order is manually reviewed by our parts experts before processing. If you provide your model or serial number and we ship the wrong part, we’ll cover the return or exchange, including a prepaid return label.
Add a model or serial number so our experts can verify this part will fit your unit before your order is processed.
Need help before ordering?
Email Parts Research
OEM part description
A Sub‑Zero isolation valve lets you shut off the water supply to the refrigerator without turning off water to the whole house. This makes service, repairs, and icemaker maintenance faster, cleaner, and safer. It helps prevent leaks, protects flooring and cabinetry, and keeps the unit running reliably.