laboratory 2000ml GL45 square bottles Canada-Analytical . 2000ml GL45 square media bottles with GL45 screw cap. The test is carried out at room temperature (approx. 20° C) and atmospheric pressure. Natural polypropylene bottle; Red GL45 tamper evident cap; Dimensions: 126mm Dia. x 278mm Hgt. Graduations: 100mL . OEM GL45 square bottles factory-Analytical Testing Vials