Environmental Express SPE, 5.5 Gram Na2SO4 Drying Cartridge, 50/Pk, G1065By Environmental Express $139.95 | PK Quantity discounts available QuantityPriceProduct #: 705755Mfr. Part #: G1065This item is in stock Quantity -+ Add to Cart Add to List Add to My List Or: Create a New List Create and Add Item Free Ground Shipping On All Orders Over $1500!*Conditions Apply* Details Description Anhydrous Na2SO4 cartridges for use with the Environmental Express StepSaver. Features Drying cartridge for solid phase extr... DetailsBackDescription Anhydrous Na2SO4 cartridges for use with the Environmental Express StepSaver. Features Drying cartridge for solid phase extraction Product Specifications Weight 1.0000