OEM provided,high quality with competitive price. Level Gauge Glass For boiler 1>materials:borosilicate 2>temperature:260c 3>length:115~400mm Level Gauge Glass also named Sight Glass,Reflex Glasses,Level Gauge Glass,Spares for level gauge,Boiled Gauge Glass,Boiled Parts,ectDescriptionLevel Gauge Glass is made from Borosilicate with toughened process. It is used in lever gauge in boiler for water ...