The 103 Tag Line is used to measure the depth to the top of backfill sand or bentonite layers during the completion of a well and to measure the depth to the bottom of a well.

The Tag Line uses polyethylene coated, permanently marked, stainless steel wireline and a choice of stainless steel weights, mounted on a Solinst reel.

Low-profile markings are bonded in place every 5 ft or 1 m, with more markings available as an extra. Ideal for use when installing Solinst 403 CMT Multilevel Systems.

The weights can be clipped on and off the cable. This allows for the reel mounted, marked cable to be used as a support cable i.e. for bailer deployment.