Petersen’s Pillow-Style Test-Ball® and Muni-Ball® plugs are great for blocking sewer flow and can also be used for sewer air testing. Made from heavy-duty elastic urethane, these pillow plugs are lightweight, flexible, chemical and petroleum-resistant, and will fit through small-diameter openings. Pillow-style plugs can be tethered with the attached tether bars, and will work in all types of pipe, including ductile iron sizes.
Features:
- Equipped with a special 30′ inflation hose, 30′ read-back line, and gauge
- Muni-Ball® style plugs feature a bypass with threaded nipples on both ends
- Made with heavy-duty Urethane rubber
- Large single-size plugs are not suitable for leak location or vacuum testing
- Always block plugs when conducting air tests
