Aldrich^® HPLC reservoir system with four-valve caps 

Features:
• Safety coated with autoclavable PVC
• Protects light sensitive materials to 385 nm
• Fingertip controls for easy, precise control
• Specially designed valves and connections assure leak free operation
• Low profile minimizes chance of tipping
• Reservoir indents improve mixing
• Reference graduations allow run time calculations
HPLC systems with four-valve caps
Valves controlling helium sparge, venting, vacuum and solvent delivery are conveniently located on the front of the cap. All tubing connects to the back of the cap, minimizing clutter. Uses standard 47 mm diameter filter membranes. Available as standard (PTFE/PP O-rings) or THF-resistant systems (Chemraz O-rings).
These systems are designed for filtration, stirring, sparging, storage, and delivery of solvents without transfer or exposure to the atmosphere.
Tetrahydrofuran (THF) and chlorinated solvents will attack the O-rings of the standard systems. Use the THF-resistant systems when using these solvents.
Each system includes:
• (1) High-performance HPLC reservoir
• (1) 4-valve cap
• (1) Solvent pickup adapter with PTFE tubing
• (10) 1/4-28 nuts for 1/8 in. O.D. tubing
• (10) Ferrules for 1/8 in. O.D. tubing
• (2) Vacuum adapters, 1/4-28 to 1/4 in. I.D. tubing
• 10ft PTFE tubing, 1/8 in. o.d.
• (2) 2μm SS filters
• (1) PTFE coated stir bar
• (2) Adapters for 1/4-28 to 1/8 in. I.D. tubing (for Waters? HPLC systems with 1/8 in. tubing)