Ace Glass, 5801-53 #7 to 1/4-28 Column Adapter with Filter Disc
Part # 5801-53
 
#7 to 1/4-28 Column Adapter with Filter Disc
Column end fitting, #7 to 1/4-28UNF helicoil tap, porosity D (10-20 micron) glass filter disc included. 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. 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.
 
Notes
Please read description carefully. Do not base your order on the picture presented.