The Xtract™ High-Temp Oil Sight Glass is your answer when radiant heat from nearby equipment or unusually high operating temperatures exceed the safe use of the legacy oil sight glasses. Only available in vertical style, the pyrex glass and Teflon end caps allow for operating and environmental temperatures up to 450 degrees Fahrenheit (232 degrees Celcius). Even under extreme temperature conditions, you will still be able to visually monitor the oil qualities and expel water contamination. This enhanced product continues to provide the visual oil management benefits when the tattle tale, bottom sediment and water bowl, BS&W, pig tail or bulls eye fail to operate due to high temperatures. The Xtract High-Temp Oil Sight Glass is effective in most operating environments with the maximum temperature rating of 450 °F and the maximum pressure rating of 65 psi.