Tubing anchor can prevent peristalsis of the tubing to minimize the losses of packer unsealed, column failure, pump stroke, etc, Feature: 1. Safely and firmly set in all type of casing, including premium grades. 2. Bidirectional slip locks, which improved pressure-resistance capability from above and below. 3. Hydrostatic set, straight pull releasing, suitable for all kinds wells. 4. Bore ...