Certa-Lok Yelomine* Fittings

  • Introducing Naco Industries fabricated Certa-Lok Yelomine* fittings.
  • Certa-Lok Yelomine fabricated fittings are available in 6" through 12" diameter, rated in pressure class 125 psi
  • Certa-Lok Yelomine fabricated fittings are designed for use with Certa-Lok Yelomine Pipe.
Fabricated Certa-Lok Yelomine fittings with a precision machined groove for above ground applications.

  • Naco Certa-Lok Yelomine fittings are manufactured from a specially formulated PVC compound that contains impact modifiers and UV inhibitors, which provide higher impact strength over an extended period of time and allow for above-ground exposed applications.


  • Naco Certa-Lok Yelomine fittings provide a restrained joint by utilizing precision-machined grooves which, when aligned, allow a spline to be inserted, resulting in a fully restrained joint that locks the pipe and fittings together.
Solvent weld Yelomine fittings for permanent systems and for above ground applications requiring UV protection.
  • Naco Certa-Lok fittings are primarily used for temporary applications. Solvent weld Yelomine fittings are available for use in a permanent system. Please call for price and availability for other solvent weld Yelomine fittings not found in the pricing table below.

    * Certa-Lok and Yelomine are trademarks of CertainTeed Corp., Lodi, CA 866-CT4-PIPE. Used with permission.
Typical above ground application requiring UV protection
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