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

Sherlock (WPLT-G-4) 5-Second Leak Detector Liquid Type LT designed for finding air and gas leaks at subfreezing temperatures down to -5 degrees Fahrenheit. Not compatible with Oxygen. 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.