Johnson Well equipment manufactures quality flush joint threaded casings and screens for monitoring wells,
test wells, dewatering and water wells. Designed with a special machined thread to screw up flush to prevent bridging
of gravel and grout pack. It is also equipped with a locking O-ring for guaranteed leak proof joints. All casings and
screens are manufactured from NSF approved materials in lengths to 20 feet and slot sizes from .006 inch. Custom slotted
screens for underground storage tanks are also available in various lengths with threaded caps and points for easier
installation. No solvents or adhesives are used in our manufacturing process to assure accurate test samples.