Nibco 604 Copper Reducing Adapter – Sweat x MPT
- ✔ In Stock — Ships Same Day or Next Business Day
- ✔ Trusted by contractors and industrial buyers
- ✔ Bulk pricing available — Request a Quote
Contact us for contractor pricing or large quantity discounts →
Couldn't load pickup availability
✔ Contractor-Grade Copper Fitting – Built for Daily Use
✔ Bulk Pricing Available
✔ Trusted by Plumbing Contractors – Not Consumer-Grade
High Demand Item – Frequently Reordered by Contractors
The Nibco 604 Copper Reducing Adapter – Sweat x MPT is a wrought copper reducing adapter for Sweat x MPT reducing (solder one end, male NPT thread) connections. Used in copper piping systems for residential, commercial, and mechanical applications. Manufactured to ASME B16.22 dimensions.
Available in 3/8" x 1/2", 1/2" x 3/8", 3/4" x 1/2", 3/4" x 1". Select size from the dropdown above.
Applications
- Residential and commercial plumbing systems
- HVAC and hydronic heating and cooling systems
- Domestic hot and cold water distribution
- Industrial and mechanical copper piping
Key Features
- Wrought copper construction
- Sweat x MPT reducing (solder one end, male NPT thread) connection(s)
- Dimensions per ASME B16.22
- Available in 3/8" x 1/2", 1/2" x 3/8", 3/4" x 1/2", 3/4" x 1"
Frequently Asked Questions
What standard does this fitting conform to?
ASME B16.22 — wrought copper and copper alloy solder-joint pressure fittings.
What connection type?
Sweat x MPT reducing (solder one end, male NPT thread) — standard copper tube connection.
Is bulk pricing available?
Yes — contact us for contractor or volume pricing.
Why Contractors Choose This Product
- Nibco — a recognized name across the trade
- Wrought copper for consistent, reliable soldered joints
- ASME B16.22 dimensions — fits standard copper tube and fittings
- Stocked in all common sizes
- In stock and ready to ship from U.S. warehouses
✔ Bulk Pricing Available
✔ Fast Shipping from Multiple U.S. Warehouses
✔ Built for Contractors, Not DIY