Screw caps for screwthread tubes GL14, bore 8mm Back Catalog number: OST-201-0246 Availability: In the manufacturer's stock Price on request - + Recommended U-COV10 O-Ring, low-emission,size 010, pk10(e2/e3 systems) Price on request U-ULKIT TD automation/ULTRA-xr starter kit Price on request M-MCTL250 Sample Pan Removal Tool, for high temp Micro-chamber Price on request