Pressure Equalizing Graduated Addition Funnels with Metering Stopcock Disposable Test Tubes See SC152F for PTFE stopcock

See SC152F for PTFE stopcock replacement parts

One 1000 mL round-bottom flask

Sizes 1L and larger accept 9

This glass Hirsch filtering funnel contains a built-in glass fritted disc with a choice of Medium (M) or Coarse (C) porosity

Pressure Equalizing Graduated Addition Funnels with Metering Stopcock Disposable Test Tubes See SC152F for PTFE stopcockDesigned for controlled reagent addition in closed reaction systems, with a pressure equalizing arm that maintains balanced pressure for smooth, controlled dispensing while helping minimize solvent evaporation. Features a PTFE metering stopcock with an adjustable bore plug for precise flow control from dropwise dispensing to full flow, helping prevent sudden overflow or interrupted flow during reagent addition. Features same size top outer and lower