Square Flange Open Washer is used as a joint in pipe fitting for industrial and agricultural purposes. The Open Washer enables the thickness and diameter of the washer to be increased or decreased up to ± 5 mm. The Open Washer is capable of operating under a temperature range of -30° F to + 70° F. The Square Flange Open Washer is made using quality grade materials like poly vinyl chloride and rubber to suit all application requirements.