Meet the Apollo PEX / Pex A 3/4 in Expansion PEX to PEX Plastic Coupling — a precise, lead-free connector built to bridge expansion PEX-A with standard PEX for clean, reliable potable water installations. Designed for durability and consistency, this boxed 10-pack keeps your projects moving without interruption.
Key benefits and what it solves
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Seamless compatibility — one end accepts expansion PEX-A, the other end accepts standard PEX, enabling easy integration of different PEX systems in renovations or new builds.
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Potable-water safety — crafted from lead-free plastic to protect water quality and meet ANSI-certified standards for peace of mind.
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Solid performance — rated for up to 200 psi and 200°F, delivering dependable pressure handling and temperature tolerance in typical residential applications.
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Efficient packaging — a boxed, 10-piece supply ensures you have plenty on hand for multi-point connections or replacement needs.
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Low-profile, space-friendly design — compact coupling that fits tight spaces often encountered in retrofit work and behind walls.
Specifications at a glance
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End 1 diameter / type: 3/4 in, Expansion PEX
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End 2 diameter / type: 3/4 in, PEX
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Maximum pressure: 200 psi
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Maximum temperature: 200°F
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Material: Plastic (lead-free)
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Packaging: Boxed, 10 per package
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Brand: Apollo • PEX / Pex A line
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Certifications: ANSI Certified
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Push to connect: No
Ideal use cases
- Upgrading older PEX networks by introducing a reliable expansion-to-PEX junction without complications.
- Retrofits where space or layout requires coupling an expansion PEX-A run to a standard PEX leg.
- Radiant floor heating branches or potable water distribution where mixed PEX systems are present.
Installation insights
For the expansion PEX-A side, use a compatible expansion tool to enlarge the tubing before sliding it into the End 1 connection. On the PEX side, connect with your preferred standard PEX joining method appropriate for your system. This coupling is not a push-to-connect fitting, so ensure you follow established expansion and PEX joining practices for a secure, leak-free seal.
Why this Apollo coupling stands out
- Distinctive compatibility between Expansion PEX-A and standard PEX in a single, reliable coupling.
- Lead-free, ANSI-certified plastic construction tailored for safe potable-water applications.
- Strong pressure and temperature ratings that align with common home plumbing demands.
- Practical 10-pack option keeps crews stocked for multiple lines or future projects.
