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TRUMBULL POLYMER MANHOLE LIDS are today’s smart choice for highway use in place of cast iron lids. They have been successfully tested to a 40,000 lb. proof load per AASHTO M-306, H-20. Test report from independent lab is available upon request. Read More
TRUMBULL MITER GEARS are designed to be used as an add-on components, mounted directly to valves, or used as stand-alone components in a valve operating assembly where the installed conditions require one or more 90 degree changes of direction. Read More