or
MilliporeSigma Supelco ORBO 23 2-HMP on Amberlite XAD-2 (20/40), 120/60 mg W,W,W separators, W,W,W Separators, Description: Bed A 120 mg/Bed B 60 mg, Diameter Outer: 6 mm, Overall Length: 85 mm, Packaging Quantity: 25/Pk., Particle Size: 20-40 mesh