By squirting rather than spraying, misleading bubbles are avoided.
Bubbles indicate a leak.
This product can be used on any prssurized pipe or tube line, fitting, valve, stem packing or any pressurized system where an internal gaseous pressure can possibly escape. To select either tube, you merely reverse the dispenser plug and squirt. No more caps to unscrew or lose. No slippery, sticky tubes. No over-sized spray ports to waste your solution.