Shop Products at ESI Source Solutions › Aurora Ultimate 25cm Column Gen 4 Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Aurora Ultimate 25cm Column Gen 4 from $1,415.00 Available in 75um ID and 150um ID - plain tip or CSI- single columns or 5-packs Type: Select Type AUR4-25075C18 - Aurora Ultimate 25cm x 75um ID 1.7um C18 AUR4-25075C18-5PK - Aurora Ultimate 25cm x 75um ID 1.7um C18 5pk AUR4-250150C18 - Aurora Ultimate 25cm x 150um ID 1.7um C18 AUR4-250150C18-5PK - Aurora Ultimate 25cm x 150um ID 1.7um C18 5pk AUR4-25075C18-CSI - Aurora Ultimate CSI 25cm x 75um ID 1.7um C18 AUR4-25075C18-CSI-5PK - Aurora Ultimate CSI 25cm x 75um ID 1.7um C18 5pk AUR4-250150C18-CSI - Aurora Ultimate CSI 25cm x 150um ID 1.7um C18 AUR4-250150C18-CSI-5PK - Aurora Ultimate CSI 25cm x 150um ID 1.7um C18 5pk Quantity: Add To Cart Added! Available in 75um ID and 150um ID - plain tip or CSI- single columns or 5-packs Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Ultimate 25cm XT and XS Series Columns Gen 4 from $1,645.00 Aurora Ultimate Column 25cm x 75um ID with 1.7um media, single or in 5-packs, with or without CSI adapter. Gen 3 from $1,405.00 Elite 15cm XT and XS Series Columns Gen 4 from $1,530.00 Aurora Rapid 8cm Columns Gen 3 from $1,340.00 Aurora Elite 15cm Columns Gen 4 from $1,295.00