FatBoy Testers™

FatBoy Testers™ are constructed of cross woven, natural rubber fabrics along with an innovative manufacturing process ensures maximum strength and durability. FatBoy Testers™ can perform a variety of applications, from front and backside air testing and vacuum testing to blocking flow.  FatBoy Testers™ are available in diameters from 3.75 inches to 61.5 inches and lengths between 16 inches and 95 inches. Every 6″-10″ and larger FatBoy Tester™ comes standard with ¾-inch and ¼-inch bypasses so users can effortlessly switch between applications without renting or purchasing additional plugs.

Max-Guard™ relief valves are standard on all FatBoy Tester™ plugs diameters 15”-30” and larger and are optional on diameters of 12″-18″ and 12”-24”. Max-Guard™ relief valves protect the plugs from becoming overinflated due to malfunctioning gauges or user error.