Screw caps for screwthread tubes GL14 Back Catalog number: OST-LENZ01320014 Availability: In the manufacturer's stock Price on request - + Recommended U-T14H2S-2S H2S cold trap, UNITY 2/xr Price on request NDV31_25L New Devex Sampling Bag with PTFE Valve & Septum Fitting, 25L Price on request U-T22117-2S Focusing trap, China Air 117, for for UNITY-xr, TD100-xr, Centri Price on request