The TP123 Pneumatic Test Plug is the newest addition to the GT Water Products, Safe-T-Seal Test Plug offering. It has a wide-reaching expansion capacity of 1.5-inch to 3-inch with a built-in pressure relief valve and 3-foot pull strap for user safety.  The TP123 can be expanded using both air and water. Made in USA. 

Manufacturer Name: G.T. Water Products