Reusable syringe filter holder for the ultracleaning of small volumes up to about 10 ml. Made completely of PTFE, this holder is unaffected by chemicals and containes no trace elements which could be released into the liquid being filtered. It is therefore extremely well suited for particle removal from samples and reagents for analytical methods, such as NMR samples. Sterilisation, autoclaving (max. 134 °C), or dry heat (max. 180 °C).