The first generation of antifreeze eyewash: big foot pedal antifreeze type eyewash: This type of eyewash uses a large foot pedal to control the water intake of the eyewash, after the end of use, release the foot pedal, and then drain the water source inside the eyewash, which belongs to the lowest end of the antifreeze eyewash

The second generation of antifreeze eyewash: eyewash and spray inlet separation type antifreeze type eyewash: the use of eyewash and spray inlet separation, eyewash and spray ball valve using T-type three-way ball valve, the disadvantage is that the site must be connected to 2 water inlets

The third generation of antifreeze eyewash: Eyewash and spray is a water inlet, spray hand push handle above the eye wash hand push handle.

The fourth generation of antifreeze eyewash: eye washing and spray is an inlet, spray hand push handle above the eye wash hand push handle, ball valve working part at the bottom

Fifth-generation antifreeze eyewash: Eye wash and spray is a water inlet, using temperature sensitivity technology to prevent freeze