Standard preparative columns:  (in stock)

Inner diameter:  6 mm iD
Column  length:   50 mm, 60 mm, 100 mm, 125 mm, 150 mm, 200mm, 250 mm, 300 mm

Inner diameter:  8 mm iD
Column  length: 30 mm, 50 mm, 60 mm, 100 mm, 125 mm, 150 mm, 200mm, 250 mm, 300 mm

Inner diameter:  10 mm iD
Column  length: 30 mm, 50 mm, 100 mm, 125 mm, 150 mm, 250 mm, 300 mm

Inner diameter: 16 mm iD
Column  length: 30 mm, 50 mm, 150 mm, 250 mm, 300 mm

Inner diameter: 20 mm iD
Column  length: 30 mm, 50 mm, 100 mm, 125 mm, 150 mm, 250 mm, 300mm

Inner diameter: 25 mm iD
Column  length: 50 mm, 150 mm, 250 mm, 300 mm

Inner diameter: 30 mm iD
Column  length: 30 mm, 50 mm, 100 mm, 150 mm, 250 mm, 300 mm
( special offer:  cartridge 20 x 30 mm id,  Guard holder necessary)

Inner diameter: 40 mm iD
Column  length: 50 mm, 100 mm, 150 mm, 250 mm, 300mm

Inner diameter: 50 mm iD
Column  length: 50 mm, 100 mm, 150 mm, 250 mm, 300 mm

Inner diameter: 60 mm iD
Column  length:  150 mm, 250 mm, 300 mm

Inner diameter: 70 mm iD
Column  length: 150 mm, 250 mm, 300 mm

Inner diameter: 80 mm iD
Column  length: 150 mm, 250 mm, 300 mm

Inner diameter: 100 mm iD  (with adjustable piston  or flansch-type)
Column  length:  150 mm, 250 mm, 300 mm

On special request:

Inner diameter: 200 mm iD
Column  length:   250 mm, 300 mm