

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 Holyoke Fittings NS4-12 Brass Flare Nut is a durable fitting designed for plumbing, heating, and refrigeration applications. It measures three-fourths of an inch and is essential for creating secure connections with flare fittings. This product is ideal for HVAC and plumbing projects that require reliable and long-lasting components.
This fitting is engineered for strength and performance in various trade environments.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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!