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Tylox® O-Ring Gasket

It may seem simple, but to ensure full functionality of the joint/gasket configuration, accurate O-ring design is critical. That’s why every Hamilton Kent O-ring gasket is crafted to the highest possible quality standards that you have come to expect from our Tylox® products.

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Product Benefits

  • Meets CSA A257 and ASTM C361 material specifications
  • Smooth, high-strength splicing
  • Tight dimensional tolerances
  • Suitable for all pipe and manholes sizes 
  • Standard, oil-resistant and California Greenbook versions available 

Available in numerous cord diameters for all sizes and dimensions of recessed grooves and joint configurations, Tylox® O-ring gaskets are carefully manufactured and precision-cut to very tight tolerances. That type of precision ensures our gaskets match the joints perfectly so each installation goes smoothly and results in watertight connections.

When you need a quality O-ring for a pipe or manhole that performs in the most stringent of applications and soil conditions, look for the Hamilton Kent Tylox® O-ring gasket.

Tylox® O-ring gaskets are manufactured from a variety of synthetic rubber compounds to meet the material requirements of ASTM C361, ASTM C443, ASTM C1619, California Greenbook and CSA A257.

The applicable specification and project application for gaskets are identified by a colored stripe around the periphery of the gasket:


  • C1619 Class C, C443, A257 – White stripe
  • C1619 Class A, C361, A257 – Blue stripe
  • California Greenbook – Green stripe


  • C1619 Class D, A257 – Orange stripe
  • California Greenbook – Yellow stripe

Pressure Rating

Tylox® O-ring gaskets are suitable for installations requiring up to 13 psig (30 ft Head or 90kPa) pressure requirements. Higher head pressures are possible for certain joint designs.

Tylox® O-ring gaskets are produced in many different cord diameters to properly seal any confined-groove joint design common in the concrete pipe and manhole industries. For companies preferring to cut and splice their own gaskets, uncut o-ring cord is also available on reels.

If your company has existing equipment for manufacturing a gasketed joint, please provide a joint drawing to your HK representative so the right gasket can be selected and priced for you. If you’re considering purchase of confined-groove equipment, please consult with HK so we can provide a recommended joint design for the best performance.

Please consult your Hamilton Kent representative regarding your specific requirements.