The Patented 2-way shut-off feature in both directions and Bon-Aire ergonomics rubberized comfort grip, makes watering a breeze. The Bon-Aire ORIGINAL ULTIMATE Hose Nozzle fits any standard garden hose (5/8 in or larger recommended for optimal performance).
Vapor-forming chemicals may include: 1  volatile organic compounds (VOCs), such as trichloroethylene and benzene. 2  select semivolatile organic compounds, such as naphthalene. 3  elemental mercury.  some polychlorinated biphenyls and pesticides.
TCA is readily available, but that does not mean it is sensible to use it. In fact, even breathing in the fumes of 5% TCA is thought to be hazardous. You can buy special kits or just bottles, with or without instructions. Which ever way you buy it, sellers make it very clear: Buyer Assumes All Risks.