Gas Powered Upper Extensions have knurl marks located on the female end. To create a 4' sampler, you WILL need to connect an upper and lower tube together. Upon assembly, you will notice two parallel...
The Gas Powered Drive Tip is used to penetrate the ground while using the desired tubing for sampling. This tip is only used with the Gas Powered Core Sampling Kit.
Gas Powered Lower Extensions have knurl marks located on the male end. These sampler tubes give you the option of creating a 2' or 4' sampler. If you are looking to achieve a 2' sample, you WILL need...