NIOSH-Approved N95/N99 Masks for about $1 Get them now!
This Allihn-style reflux condenser has a plain tubulation at the top and a lower inner drip tip joint at the bottom. The hose connections have an O.D. of 10 mm at the middle serration which is ideal for 3/8" I.D. supply lines.
These condensers are available with a 14/20 or 24/40 inner (male) standard taper ground glass joint on the bottom. The 14/20 model has 9 mm (0.35") O.D. tubulation at the top and the 24/40 has 12.7 mm (1/2") O.D. tubulation.