Although virtually unbreakable, these sturdy pins precision machined from 5/16 inch stainless steel rod can be easily dropped and lost when not seated in a JMC ESP PLUS Master or Regular Extension.
Replacement liner for JMC Environmentalist's Sub-Soil Probe's 36 inch Sampling Tube available at lower prices when purchased in larger quantities. Click on details for more information.
Use our solid tip instead of a cutting tip to plunge to desired depth without filling the sampling tube. Useful for creating small diameter monitoring wells or limiting sample debris.