Trusted Gasket Solutions for the American Waterworks Industry


We support the infrastructures that keep communities flowing.
For over half a century, Spec Rubber has proudly supported America’s waterworks industry with durable, dependable gaskets. Our products help power the critical infrastructure that keeps clean, safe water flowing to homes and communities across the nation.
Reliable Gaskets for the Demands of Public Infrastructure
From municipalities to contractors, Spec Rubber provides the waterworks gaskets that help keep systems running safely and smoothly. We offer a complete line of ductile iron pipe and fitting gaskets backed by consistent performance, clear communication, and on-time delivery.
Whether they’re for new installs or long-needed upgrades, our products are built to serve the needs of public works professionals who can’t afford delays or risk.
Custom Project Needs
We work directly with waterworks customers to supply NSF-61 certified gaskets that meet unique specs, timelines, and installation requirements.
Quality Assurance & Compliance Confidence
Every waterworks gasket is manufactured and tested to meet or exceed industry standards, giving municipalities peace of mind.
Competitive Lead Times
Our domestic gasket facility in Alabama helps speed up production and shipping, especially for urgent jobs or large orders.
About Our Waterworks Gaskets

Ductile Iron Pipe & Fitting Gaskets
We carry a full line of ductile iron pipe gaskets and fittings used across water distribution systems nationwide.

BABA Compliant Products
We meet Build America, Buy America Act standards, helping public projects stay in full federal compliance.

All Made in the USA
Our products are proudly manufactured in Alabama using domestic materials.

Fully Licensed Gasket Manufacturer
Spec Rubber operates under full industry licensing, with a long track record of supplying products for critical infrastructure and high-importance projects.
Talk to an Expert
Spec Rubber has supplied gaskets for public water systems for more than 50 years. Our products are made in the U.S., built to last, and compliant with industry standards and federal guidelines.
Ultimately, American cities and counties choose us as their licensed manufacturer because they know they can count on consistent quality, fair pricing, and responsive support.
We manufacture a wide selection of Toruseal and flat filler flange gaskets designed for ductile iron pipe applications, including mechanical joint, push-on, and specialty sizes. If a specific style is required, we’re able to provide the right match quickly and reliably.
Yes. Our U.S.-based team works closely with engineers, contractors, and public utilities to make sure the right molded rubber gasket is used for each application. We’re always available to answer questions and help avoid project delays.
Absolutely. Our gaskets are designed for flexibility—whether you're installing new infrastructure or making upgrades to existing systems, we can support all kinds of needs within the waterworks industries.
Thanks to our domestic manufacturing and established shipping networks, we’re able to respond quickly to both planned jobs and urgent requests. We prioritize dependability and clear timelines to help our customers stay on track.
Frequently Asked Questions
See What Our Waterworks Clients Are Saying
“Many times, the solution is simply to use the Toruseal® gasket from Specification Rubber because of its ability to catch and stop leak pathways based on its design. I highly recommend the Toruseal® Gasket for the peace of mind that it provides and its reliable performance.”
“This Gasket is far superior to standard flat gaskets. It costs a little more but the reassurance that it will not leak is worth it. We have never had an issue with the Toruseal® Gasket and highly recommend it for its reliable, leak-proof performance and peace of mind.”