Nickel-plated brass · For manual hydraulic compensation · With infinitely variable presetting · Tested according to DIN EN 215 Part 1 · CEN certified · Euro cone for one-way connection of 3/4" adapters for different pipe dimensions, as well as on the other hand 1/2" external thread · Clearance form · Th-collar connection thread M 30 X 1.5 · 1/2" AG, 3/4" AG