9mm Open Top Screw Cap, Red with Blue PTFE/White Silicone Septa, Pre-Slit

Alternative to:
La-Pha-Pack: 09 15 1179, National: C4000-55R + C4000-72R (alt.), Agilent: 5183-2078, Fisher: 11874830, VWR: 548-0382, Waters: 186002128 (alt.)