Sherlock 5-Second Leak Detector Liquid Type Regular, 1 Gallon, Case of 4

Sherlock (WPREG-G-4) 5-Second Leak Detector Liquid Type Regular specially formulated chemical type leak detection fluid for locating leaks in pressurized gas and air systems, except oxygen, in temperatures above freezing. Easy to use, simply wipe surface to be tested with a brush or dauber, squirt on with a squeeze bottle, or spray with a trigger sprayer. Small leaks form white foam in 5 to 60 seconds. Large leaks form large bubbles almost instantly. Comes in 1 gallon bottle, and packed 4 per case.