We offer Adjustable Flanges Pf 900 Series. Description Adjustable Flanges are made of cast bronze, stainless steel fitted. PF 900 series Adjustment Flanges are designed to permit limited directional adjustment of spray jets or nozzles that do not have swivel bases. Maximum 5 degree of adjustment from centre line is possible. To Adjust Loosen bolts on opposite side to intended direction of adjustment and tighten bolt in line of intended adjustment then lock all bolts. The Adjustment Flanges are for submersed installation.