Gas washing columns, FEP/PTFE PTFE top with two threaded connections. The standard PTFE frit has a pore size of approx. 3 µm and is screwed on the riser tube with an M8x1 thread. It can be exchanged with the PTFE gas distributor with fine bores which needs a lower primary pressure. Temperature resistance: from -200°C to +250°C -transparent -unbreakable -frit easily exchangeable
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