Pressure Gauges are used in many applications. These Pressure Gauges can be used for most applications including WOG (Water, Oil, Gas). The Taprite line of Pressure gauges are amongst the best we offer as they are very accurate in Co2 and N2 Regulators for Beverage applications. IPS Stocks most of the Taprite Pressure Gauges listed and if we don't stock and you need it, we'll happily stock them for you!