Manifold M25, vacuum solid glass stopcocks, double

With 4mm double oblique, vacuum solid glass stopcocks precision ground with corresponding numbers on barrel and plug. Solid glass stopcocks have constant pressure retention devices. Beams are 22mm O.D. with front-left-right and rear-left-right hose connections with O.D. of 10mm. Distance between stopcocks is 75mm center to center.