The Cole-Parmer 20 mm Crimp Cap, UltraClean Silicone/PTFE (98704-69) is a silver aluminium closure designed for compatible crimp-neck chromatography and headspace vials. This 20 mm configuration features an UltraClean high-purity transparent blue silicone/white PTFE septum with a centre hole, 45 Shore A hardness and 3.0 mm thickness.
Key Features
- 20 mm crimp closure, providing the specified cap diameter for compatible crimp-neck vials
- Silver aluminium construction, designed to crimp tightly around the vial neck for a secure seal
- UltraClean high-purity septum, providing the specified high-purity closure configuration for this exact variant
- Silicone/PTFE septum construction, combining transparent blue silicone with a white PTFE layer
- Centre-hole septum design, providing the specified opening for autosampler needle access
- 45 Shore A septum hardness, providing defined penetration characteristics for compatible autosampler needles
- 3.0 mm septum thickness, matched to the specified 98704-69 closure configuration
- Designed for crimp-neck vials, providing the intended closure format for compatible analytical sample containers
- Autosampler-oriented construction, with defined septum hardness and cleanliness characteristics supporting reliable instrument operation
- Non-sterile supplied format, matching the manufacturer specification for this closure
- Pack of 1000 caps, supporting routine and high-throughput analytical workflows
Benefits
- Create a tight seal around compatible crimp-neck vials using the aluminium crimp closure.
- Support sensitive analytical workflows with the UltraClean high-purity septum configuration.
- Maintain reliable autosampler needle access through the defined centre-hole septum design.
- Select a closure with defined hardness and thickness characteristics for consistent autosampler use.
- Support high-volume laboratory requirements with 1000 closures supplied per pack.
Why Choose the Cole-Parmer 20 mm Crimp Cap, UltraClean Silicone/PTFE (98704-69)?
The Cole-Parmer 98704-69 combines a silver aluminium 20 mm crimp cap with an UltraClean silicone/PTFE septum specified at 45 Shore A hardness and 3.0 mm thickness. John Morris Group supplies this pack of 1000 for laboratories requiring a high-purity crimp closure for compatible chromatography and headspace vials.
