Quick aluminum coupling threaded union-fitting 75 pipe 53

75 mm threaded male-male quick-connect pipe self-locking pin coupling with rubber o-ring, 53 mm bore, suitable for sewage and fire pumps

When connecting two Bogdanov heads, the fangs of one head enter the gaps of the spiral protrusions of the other head. When turning the clips in opposite directions relative to one another, the toothed clamps enter the spiral ledges and continue to move along them