PTFE 24/40 to KF25 or 3/8″ Hose Barb Adapter w/ Viton O-rings
The flange adapter has a 13mm internal diameter and converts 24/40 adapters to KF25, it also comes with an adapter to 3/8″ hose barb. It’s for use with the bigger pumps. In order to engage the stainless-steel bellows–the tubing which comes with such pumps, this adapter is required. It has a PTFE body with a Viton® gaskets, allowing for corrosion resistant, airtight vacuum work.