Cheap And Discounts AFINE Agilent J&W GC Packed Columns in UltiMetal Tubing, 1/8 in OD, 2 mm ID, G3591-81001 G3591-810012 G3591-810013 Wholesale. Buy Directly From Merchant Shop1104121230 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.