PBS buffer with Tween-20: 10 Mm Phosphate, 137 Mm NaCl,2.7mM KCl 0.05% Tween-20,pH 7.4 $1,080.45 Quantity discounts available QuantityPrice SKU: GVS-BUFDRYB1920A *Item is not in stock. This item normally carries a 5-10 day lead time. Quantity -+ Add to Cart