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.
Remove cutting tips easily from JMC Environmentalist's Sub-Soil Probe (and Sub-Soil Probe Plus) Sampling tubes! Use one wrench to lock tightly around your sampling tube and another to clamp onto your cutting tip. With two comfortable handgrips, you can unscrew even the most stubborn connection.
Stainless steel liner 12" long. Although made for the JMC 12" Zero Contamination Tube, these liners will also fit the JMC Environmentalist's Sub-Soil Probe and the JMC 18 inch Zero Contamination Tube when used with Spacers.
The ESP pulls a 3 (or 4) foot long by 0.8 inch diameter sample in one plunge. It captures every sample in a plastic (or stainless steel) liner and can sample to 3 (or 4) feet (30 feet with extensions). Sampling tube is driven by a 12.5 pound drop-hammer (or electric hammer) and retrieved with a foot-operated jack.
Aluminum Washer fits manual sliding hammer for the JMC Environmentalist's Sub-Soil Probe PLUS(1.2 inch diameter sampler). Fits between the Threaded Collar(PN163) and the Aluminum Cylinder(PN453). This is the part that rests on the top of the sampling tube.