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 so it is a mistake

so it is a mistake to judge that it is a genuine stainless steel

while small

and banquets and every day use

Adjustable Angle ViewingEasily adjust to your preferred angle (from 20 to 75)

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 so it is a mistake1 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