1/4" 3/8" 1/2" 3/4" 1" 1-1/2" 2" BSPT Female 304 Stainless Window Sight Glass Flow Indicator With Impeller (1/2" DN15) 1/2" DN15 auspowers_batchone and banquets and every day

and banquets and every day use

Warm note: these small size balls are solid steel

while small

to avoid short circuit and noise and Charging will automatically stop when battery is full

1/4" 3/8" 1/2" 3/4" 1" 1-1/2" 2" BSPT Female 304 Stainless Window Sight Glass Flow Indicator With Impeller (1/2" DN15) 1/2" DN15 auspowers_batchone and banquets and every day1 4" 3 8" 1 2" 3 4" 1" 1 1 2" 2" BSPT Female 304 Stainless Window Sight Glass Flow Indicator With Impeller (1 2" DN15) The single tube impeller type observer, also known as the impeller sight glass, is a necessary accessory to observe the flow of the medium in the pipeline. The impeller sight glass is widely used in industrial production equipment such as petroleum, chemical industry, chemical fiber, medicine, food, etc. It can observe the flow