Accessories
Thomson carries a number of accessories for the Ultra Yield® Flask series. Accessories add to the ease-of-use and functionality of Ultra Yield® Flasks

Ultra Yield® Flask Accessories
Caps for Sterile Breathing, & Aseptic Transfer

Vented Caps
Vented Screw Caps feature a PTFE 0.2μm membrane layer that assures sterility without limiting gas exchange due to saturation from condensation.

BiDirectional Transfer Cap
aseptic transfer system
In addition, when it comes time to harvest flask contents or transfer to larger fermenters Thomson manufactures a single-use Ultra Yield® BiDirectional Transfer Cap for the 1.5L and 2.5L Ultra Yield® Flasks. This aseptic transfer system keeps your process sterile and GMP-compliant
Visit More of the Ultra Yield® System

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Ultra Yield® Vent Cap Part Numbers
- Ultra Yield® 125mL Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Ultra Yield® 125mL Flaskspn899109|50/caseclick for more details
- Ultra Yield® 250mL Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Ultra Yield® 250mL Flaskspn899110|50/caseclick for more details
- Ultra Yield® 500mL Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Ultra Yield® 500mL Flaskspn899111|25/caseclick for more details
- Ultra Yield® 1.5 & 2.5L Vent CapsterilePTFE 0.2µm for Increased Aeration | SterileFor Ultra Yield® 1.5 & 2.5L Flaskspn899566|24/caseclick for more details
Ultra Yield® BiDirectional Transfer Cap Part Number
- Ultra Yield® Bidirectional Transfer CapsterileFor 1.5 & 2.5L Ultra Yield® Flask | SterileUse with Peristaltic Pumppn899136|6/caseclick for more details