Logiball Elliptical Mainline test and seal injection packers are custom-made for the exact pipe dimensions and the available access to the storm sewer lines. The two end rubber bladders are covered with a soft rubber sleeve that provides superior seating against rough surfaces. Our elliptical grout packers are equipped with a localized pressure sensor and two injection grouting ports protected by a large, non-clogging adjustable rubber check-valves. Contact us if you need a special configuration. Rentals available, contact our sales department for further information.