Erlenmeyer flask, 3000 ml, GL 45, with screw cap and 4 baffles

Erlenmeyer flask, 3000 ml, thread GL 45, PBT screw cap with PTFE-coated seal (up to + 200°C) and 4 baffles, when placing in autoclave, screw the cap on loosely. Do not screw tight!, borosilicate glass 3.3