This extension lets you sample 3 feet deeper than the length of your sampling tube. (6 feet with a 3 foot tube) If you want to sample deeper than that you will need to purchase one or more JMC ESP Regular Extensions in addition to this extension.
In some situations, it may be expedient to plant several 2 inch diameter casings in the ground before returning to sample through each one. That is why we sell separate casings for the JMC 2 by 6 inch Concentric Sampling Tube.
Remember: This is the casing only. You should already have a Concentric Sampling Tube.
The JMC Environmental Fate Sampler takes a 6 inch diameter by 2 inch deep sample. It maximizes recovery of surface applied chemicals on day zero and greatly reduces surface contamination risk to subsequent samples. The Deluxe system adds components to reduce processing time.
Aluminum Washer fits manual sliding hammer for the JMC Environmentalist's Sub-Soil Probe (0.8 inch diameter sampler). Fits between the Threaded Collar(PN163) and the Aluminum Cylinder(PN161). This is the part that rests on the top of the sampling tube.