Details
Nuova Simonelli Expansion/Retention Valve – CO10 (Small, 1/4")
This is the smaller CO10 retention/expansion valve sized for 1/4" fittings — used inside expansion valve assemblies, not the larger valve at the bottom of the water reservoir.
SPECIFICATIONS
- Fits inside 1/4" fittings only
- Current production uses a white plastic center sealing piston (earlier versions were green)
COMPATIBILITY
- Fits: Nuova Simonelli expansion valve assemblies (1/4" fittings only)
- Replaces: Nuova Simonelli #01000090
INSTALLATION
Simple DIY swap once the expansion valve is opened up.
PRO TIPS
- Confirm which valve you're servicing before ordering — this small CO10 fits inside the expansion valve itself, not the larger retention valve at the base of the reservoir; the two look similar but aren't interchangeable.
- Don't be alarmed if the new piston is white instead of green — Nuova Simonelli changed the piston material/color, but form and function are identical.
Customer Reviews
Attention CA Residents: Prop 65 Warning
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.