Cherne’s Pillow-Style Test-Balls are great for blocking sewer flow. Made from heavy-duty elastic urethane, these plugs are lightweight, flexible, chemical and petroleum resistant, and will fit through small diameter openings. Pillow- style plugs can be tethered to full head pressure with the tether bar.
Equipped with a special 30′ inflation hose, read-back line and gauge
A repair kit is available to fix small tears and punctures