The model 375 is Chem Flowtronics answer to today’s technological requirements in the field of sight verification equipment. Our latest Model “375” is Stainless Steel tough, manufactured in 316L SS ends with SS hardware and fasteners. The heart of the unit, is our glass “borosilicate” cylinder, manufactured of extra heavy wall borosilicate glass capable of pressures not usually associated with tubular sight flow designs. Standard with every unit is a Polycarbonate Shield to protect the glass from both external forces, and other equipment from internal forces. We offer this design with a variety of wetted surfaces, or linings.