




Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The Caleffi 59474A is a one-eighth inch NPT male service check valve designed for HVAC applications. It allows for the removal of an air vent or expansion tank without the need to purge the system. This product fits with automatic air vents from the 502 series.
Reliable check valve for maintaining system integrity when servicing air vents.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!


