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Main product image of R25 x 1" Male Copper Sweat Fitting Adapter
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R25 x 1" Male Copper Sweat Fitting Adapter
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A4342510 has been discontinued
Discontinued May 27, 2026
This product was discontinued by the manufacturer.

Product Highlights

Product Highlight: Size
1" x R25
Product Highlight: Material
Brass
Product Highlight: Tubing Compatibility
PEX,PEX-AL-PEX
Product Highlight: Fitting System Compatibility
PEX Compression
Product Highlight: Standards Met
ASTM F877, NSF, ASTM F1960 Standards Met
Product Highlight: Max Pressure (PSI)
200 MAX PSI

Description

Note: Use for 3/4" tubing only
Use R25 Copper Fitting Adapter with appropriate QS-style Fitting Assembly to transition from Wirsbo tubing to 3/4" and 1" copper fittings.

Specs

Size:

1" x R25

Material:

Brass

Application:

Heating

Max Pressure (PSI):

200

Sweat Size:

1"

Warranty:

5 Year

Thread Type:

Male

Standards Met:

ASTM F877

NSF

ASTM F1960

Fitting System Compatibility:

PEX Compression

Tubing Compatibility:

PEX,PEX-AL-PEX

Max Temp (F):

200°F

Thread Size:

R25

Contact

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Product Q&A

1 Question
1 Question
ASK A QUESTION

Q: can this fitting be used to connect 3/4 Pro pex to a water pressure regulator using the expansion method of connecting to the Pro Pex pipe? Is any thing else needed? If not , what fitting do you recommend. Thank you

Asked by Terry 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

This fitting (part A4342575) is actually designed for connecting 3/4" copper to R25 threads. When connecting 3/4" PEX-A tubing to a 3/4" water pressure regulator, you will probably need a 3/4" male x ProPEX adapter (part LF4527575), a 3/4" female x ProPEX adapter (part LF4577575), or, if the adapter has sweat connections, a 3/4" ProPEX x copper fitting adapter (part LF4507575).

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