UBC tank-wash heads: This rotating cleaning head is one of our most popular models. They are made completely out of stainless steel, with the rotating sphere rolling on two rows of ball bearings. Both the inner and outer surfaces are carefully machined, deburred, cleaned and polished to avoid contamination from bacterial growth. UBC heads are available with varying female BSP threads or a clip connection. The robust and simple design results in a high quality construction, long trouble-free service and remarkable efficiency. Available coverage spray patterns include 180° down, 270° up and 360° full coverage. Max pressure 7 bar | Material 316 Stainless steel.