Open-top bottle with scale /PTFE septa HM-2532 Clear bottle,with scale (hole in the centre of balck bakelite cap/ptfe Silicone septa $3.28/piece HM-5032 50ml Clear bottle,with scale (hole in the centre of balck bakelite cap/ptfe Silicone septa HM-10032 100ml Clear bottle,with scale (hole in the centre of balck bakelite cap/ptfe Silicone septa HM-15032 150ml Clear bottle,with scale (hole in the centre of balck bakelite cap/ptfe Silicone septa HM-25032 250ml Clear bottle,with scale (hole in the centre of balck bakelite cap/ptfe Silicone septa HM-50032 500ml Clear bottle,with scale (hole in the centre of balck bakelite cap/ptfe Silicone septa HM-00G30 Hole in the centre of balck bakelite cap/PTFE Silicone septa HM-30PD PTFE/Silicone septa