National Scientific 8-425 Septa

For 8-425 Screw Thread Caps
Grouped product items
Product Name Part # Price Qty Image
8mm Septum, Virgin PTFE, 10mil, 1000/case NS-C401310
8mm Septum, Tan PTFE/White Silicone, 1000/case NS-C401361
8mm Septum, Red PTFE/White Silicone, 100/pack NS-C401355
8mm Septum, Red PTFE/White Silicone, 100/pack NS-C401360
8mm Septum, Blue PTFE/White Silicone, Pre-slit, 100/pack NS-C401332
8mm Septum, Red PTFE/White Silicone/Red PTFE, 100/pack NS-C401340
8mm Septum, Ivory PTFE/Red Rubber, 100/pack NS-C401330

* PTFE Disk septa are chemically inert

* PTFE Red Rubber septa are economical for many GC applications

* PTFE/Silicone septa are most popular for HPLC and IC applications

* Pre-slit septa are easier to pierce with thin gauge needles