- Inner ground glass joint with ring on shank for use with threaded outer member, O-Ring and cap to form a leak-tight seal.
- Outer member glass joint with external thread for use with inner member, O-Ring and cap to form a leak-tight seal.
| Part No. | Female Joint | Part No. | Male Joint | Pack QTY |
| 1020-14F | 14/23 | 1020-14M | 14/23 | 10 |
| 1020-19F | 19/26 | 1020-19M | 19/26 | 10 |
| 1020-24F | 24/29 | 1020-24M | 24/29 | 10 |
| 1020-29F | 29/32 | 1020-29M | 29/32 | 10 |
