At LESSO America, we believe in delivering PVC plumbing fittings that do more than meet the basics. Our commitment to quality is reflected in every product we manufacture—each one designed to comply with, and often exceed, established industry benchmarks like the ASTM standards. When reliability and consistency are critical, our fittings are built to perform.

In this article, we take a closer look at what sets our PVC plumbing fittings apart in terms of quality, certification, and compliance.

Understanding ASTM Standards in Plumbing Fittings

ASTM International sets widely accepted standards for material quality, performance, and safety in construction and manufacturing industries. For PVC plumbing fittings, ASTM standards define criteria such as wall thickness, dimensional tolerances, impact resistance, and pressure ratings.

At LESSO America, we align our production processes and product specifications with these standards to ensure consistency and dependability across our entire product line. Our SCH40, SCH80, and DWV PVC fittings are engineered with these benchmarks as the foundation, allowing us to deliver fittings that perform reliably in both residential and commercial environments.

Certifications That Back Our Quality

In addition to ASTM compliance, we reinforce our commitment to quality through recognized third-party certifications. Our PVC plumbing fittings carry cNSFus and cUPC marks, both of which are widely respected in North America:

cNSFus (NSF International): This certification verifies that products are tested for safety and suitability in drinking water systems, confirming that our fittings do not leach harmful substances into water.

cUPC (Uniform Plumbing Code): cUPC-certified products meet uniform plumbing standards across the U.S. and Canada, ensuring system compatibility and code compliance.

By meeting the requirements of these certifications, we help ensure that contractors, engineers, and homeowners have access to fittings that are not only structurally sound but also approved for use in regulated plumbing systems.

Built to Perform with Precision and Durability

Our fittings are manufactured using high-quality PVC material and advanced plastic injection technology. This allows us to produce consistent dimensions and superior fitment—two key qualities that reduce installation errors and prevent future maintenance issues.

Each fitting type—whether it's an elbow, tee, adapter, or coupling—is tested to ensure tight tolerances and pressure resistance. Whether used in a high-flow irrigation system or a low-pressure drainage line, our fittings are designed to maintain performance over time.

Conclusion

PVC plumbing fittings are critical components in any water system, and quality should never be compromised. At LESSO America, we make it our mission to produce fittings that align with the most rigorous industry standards and certifications. Our focus on ASTM compliance and independent testing provides peace of mind for professionals who rely on dependable plumbing solutions.

We invite you to explore our full line of PVC fittings and experience the LESSO America difference where quality, consistency, and trust come together.