Ace Glass 5801-07 Michel‑Miller End Fitting Adapter 1/4"‑28 UNF to #7 Ace‑Thred for Use with Paper Filter Disc (Not Included)

Precision made PTFE end fitting for use at either end of the 5795 Michel-Miller, or 5820 columns. Designed to make a leak-tight seal without the use of O-Rings. Simply tighten until white ring appears indicating a seal has been made, then secure locknut; no need to over-tighten. Normally use paper filter disc, 5814-06 respectively, to retain packing material. Female thred at top is 1/4"-28 UNF to accept standard miniature plumbing systems. Bore is 1.5 mm (0.060"). Male thred is size designation and matches thred size of columns.