KwikDraw-Uniphos Gas-Tester 1/Thumb Pump Sampler Only
An easy and low cost pump that can be used with one hand, by pressing the rubber bulb with only your thumb. In this way, a 100ml of air is drawn through the tube. The pumps is including pump stroke counter.
The KwikDraw-Uniphos Gas-Tester I Thumb Pump is also known as the MSA Auer Gas Tester I