Couplings

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Couplings

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Water Armor® 3/4” to 1/2” Lead-free* PEX [Crimp] Reducing Coupling

$56.88 ($2.28 per pc)

Pack Size: 25 Pack

WAEC430JJ-025
Made in the USA

Size: 0.75 x 0.5, Pack Size: 25 Pack

Water Armor® 1” X ¾” Lead-free* PEX Coupling

$72.60 ($2.90 per pc)

Pack Size: 25 Pack

WAEC540JJ-025
Made in the USA

Size: 1 x 0.75, Pack Size: 25 Pack

Out of Stock

Water Armor® 1" Lead-free* PEX Coupling

$74.25 ($2.97 per pc)

Pack Size: 25 Pack

WAEC550JJ-025
Made in the USA

Size: 1.0 x 1.0, Pack Size: 25 Pack

Out of Stock

Water Armor® 3/4” Lead-free* PEX [Crimp] ECO BRASS® Coupling

$37.81 ($1.51 per pc)

Pack Size: 25 Pack

WAEC440JJ-025
Made in the USA

Size: 0.75, Pack Size: 25 Pack

Water Armor® 1/2” Lead-free* PEX [Crimp] ECO BRASS® Coupling

$22.81 ($0.91 per pc)

Pack Size: 25 Pack

WAEC330JJ-025
Made in the USA

Size: 0.5, Pack Size: 25 Pack

Reliable Brass PEX Couplings for Secure In-Line Connections

Brass PEX couplings provide the straight, secure connections professional plumbers need when joining two sections of PEX tubing or repairing damaged lines. These essential fittings create strong in-line connections for extending PEX runs, connecting supply lines in manifold systems, or making field repairs without compromising system pressure or flow. Unlike push-fit plastic couplings that can work loose over time or fail under thermal cycling, brass couplings deliver permanent, leak-proof joints that withstand the expansion and contraction of hot water systems. Whether you’re running continuous PEX lines through multi-story buildings or connecting branch lines in a residential manifold system, these couplings ensure reliable performance that won’t come back to haunt you.

Our American-made brass PEX couplings are manufactured from lead-free ECO BRASS® (C69300 alloy), engineered to resist corrosion and dezincification in both hot and cold water applications. Every coupling meets NSF/ANSI 61 and 372 certifications for potable water safety and complies with UPC and IPC codes in all 50 states. Available in sizes from ½″ to 1″, these couplings work with F1807 crimp or F1960 expansion connection methods and are compatible with PEX-A, PEX-B, and PEX-C tubing. Union-style couplings allow for future disconnection when needed, while standard couplings create permanent joints rated for 180°F and 190 psi. The precision-machined brass construction ensures consistent barb dimensions that create uniform, reliable crimps every time.

Contractors benefit from our bulk availability and wholesale pricing. Keep a variety of coupling sizes on your truck so you’re ready for repairs, extensions, or last-minute changes without losing time on supply runs. Brass couplings offer the strength and durability that plastic simply can’t deliver—giving you the confidence that your connections will perform long after you’ve left the job site.

Couplings

Water Armor® 3/4” to 1/2” Lead-free* PEX [Crimp] Reducing Coupling

Water Armor® 1” X ¾” Lead-free* PEX Coupling

Water Armor® 1" Lead-free* PEX Coupling

Water Armor® 3/4” Lead-free* PEX [Crimp] ECO BRASS® Coupling

Water Armor® 1/2” Lead-free* PEX [Crimp] ECO BRASS® Coupling

Reliable Brass PEX Couplings for Secure In-Line Connections

Lead-free*

PEX Fitting