- Robust threaded ports accept 1/4"-28 UNF(M) fittings
- Anti-twist design
Caps have 0.07" (1.8 mm) through-holes allowing 1/16" OD semi-rigid tubing to pass through into the bottle. Use 1/4"-28 UNF(M) fittings to connect other size semi-rigid tubing or use Dibafit„¢ PEEK„¢ thread-to-barb adapters to connect flexible tubing. Each port features a stainless steel thread insert to enable repeated connect/disconnect. All caps are autoclavable and withstand pressure from -10 to 20 psi. A 12-1/4" (31 cm) long, 1/8" OD PTFE tubing is supplied fitted inside the cap and extending into the bottle.