Do you have replacement O-Rings for the WTMLC, WTC-A, & WTC-C Series watertight well caps?

Yes, the replacement O-rings are AS568 Standard North American O-rings which are readily available from most O-ring suppliers. Boshart can also supply these O-rings when required. The charts below provide the size numbers for both the larger diameter top cover O-ring as well as the smaller diameter well casing O-ring.

Additional Resources:

https://support.boshart.com/what-is-the-function-of-well-caps-in-a-well-water-system

https://support.boshart.com/what-are-the-pros-and-cons-of-plain-conduit-and-watertight-well-caps

https://support.boshart.com/how-do-i-identify-a-well-cap-model-number-for-replacement-parts

https://support.boshart.com/how-do-i-measuring-my-well-casing-to-determine-the-required-well-cap-size

https://support.boshart.com/what-is-the-function-of-each-well-water-pressure-system-component

https://support.boshart.com/what-is-new-with-our-well-cap-product-line

https://support.boshart.com/how-do-i-install-a-wtcc-series-well-cap

https://support.boshart.com/how-do-i-install-a-wtc-series-well-cap

https://www.watersystemscouncil.org/resources/well-standards/