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1000ml Electric Temperature regulation Heating Mantle,1L Temp Adjustable Sleeve
1000ml Laboratory Pressure Equalizing Addition Funnel With PTFE Stopcock 24/29 Joint
Comparing to an ordinary dropping funnel, the Pressure-equalizing dropping funnels have an additional narrow-bore glass tube from the upper part of the funnel bulb to the ground glass joint around the stem at bottom. With standard taper glass outer joint at Top and inner joint at bottom, with PTFE stopcock upper on the bottom glass joint.