These 4mL (13mm) 15 x 45mm vials are manufactured from superior 51A amber (Type 1, Class AB) or clear glass and feature a 13-425 thread finish.

• Microsampling and High Recovery Vials allow maximum sample extraction without need for separate inserts
• Graduated, write-on patch available for convenient sample identification
• Optional silanized (deactivated) glass maximizes recovery of critical polar, labile or OH-interacting compounds
• Polyspring inserts are self-aligning and provide a cushion against needle contact