Our GTP (Glass Tube Protected) Drum Gauges are a product of extensive research. By protecting the tube and making it a red line instead of clear glass we solved a multitude of field problems. We also have as standard a unique lower sealing system that is virtually leak proof.
Besides the shield on the face of the gauge there are two stainless steel indicators to help you calculate your pumping ratio. Our gauges are are also available with carbon steel, stainless steel, and plastic nipples.