The Apollo PEX / Pex A 1/2 in. Expansion PEX to 1/2 in. D PEX Plastic Elbow is a precise, reliable 90-degree fitting engineered for PEX piping systems. One end accommodates Expansion PEX (PEX-A) tubing, while the opposite end accepts standard PEX, giving you a clean, space-efficient bend in tight installations. Crafted from durable plastic and designed for lead-free water systems, this elbow pairs with Apollo’s expansion methodology to deliver a secure, long-lasting connection without metal components in the flow path.
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Size and ends: 1/2 in. nominal on both ends; one end is Expansion PEX, the other end is standard PEX
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Material: Plastic, lead-free formulation
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Pressure & temperature rating: Up to 200 psi and up to 200°F (maximums reflect typical residential use)
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Packaging: Bagged, 10 pieces per package
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Standards: ANSI certified
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Connection type: Expansion PEX on the PEX-A side; traditional PEX on the opposite side; not a push-to-connect fitting
Why this elbow stands out
In PEX systems, space is often the limiting factor. This 1/2 in. expansion elbow from Apollo is designed for tight turns where a standard straight run would be impractical. The expansion-Pex to PEX configuration minimizes fittings in complex layouts, reducing potential leak points and helping maintain a smooth interior flow. The one-piece molded design lowers the risk of slip joints and simplifies installation in confined spaces, making it a practical choice for both DIY projects and professional installs.
Ideal use cases
- Routing supply lines around cabinets, appliances, or wall studs where a 90-degree turn is needed
- Connecting PEX-A expansion tubing to conventional PEX runs in residential plumbing
- Radiant floor heating loops that require reliable, compact elbows without metal components
- Basement, attic, or crawl space installations where space is at a premium
Installation tips
Prepare the tubing ends according to your expansion system. On the Expansion PEX side, use the appropriate expansion tool to widen the tubing before seating it onto the elbow. Once the tubing is aligned, release to allow the PEX to grip the fitting securely. On the PEX side, follow standard PEX joining practices for a snug, reliable connection. Inspect for proper seating and perform a pressure test after installation to confirm a leak-free bend. With a 1/2 in. diameter on both ends, this elbow is compatible with a wide range of residential PEX layouts.
Best results come from using this elbow with compatible Apollo PEX A expansion components and standard PEX piping. Its lead-free plastic body is a practical, corrosion-resistant choice for modern homes seeking durable, code-compliant water distribution solutions.
