The improved StepSaver™ is completely manufactured out of durable PVC and plastic materials. This compact, single-place station has a small footprint to save valuable benchtop space. These stations can be daisy-chained together to run multiple samples at once for a faster sample throughput. The improved StepSaver still meets the EPA Method 1664 requirements for Oil and Grease extractions. The StepSaver allows the analyst to collect the solvent with eluted oil and grease directly into a collection flask eliminating the need to disassemble or reassemble glassware. As the eluent enters the collection flask it passes through a drying cartridge to remove any excess water so it is ready to be evaporated without a separate drying step. It's easy and efficient. Simply pour your sample into the disposable funnel on the extraction side which is on the right side of the unit. Our patented UltraPrep® extraction disks don't need to be activated with methanol before use nor do they need to be kept wetted. With the vacuum on, turn the large stopcock to allow the sample waste to pour off into the waste carboy. Once the sample has completely gone to waste, continue pulling vacuum for 5 minutes to allow the residual water in the disk to be removed. Next, turn the large stopcock to the closed position and move the disposable filter funnel to the elution side, which is located on the left side of the unit. Add n-Hexane to the funnel to elute the oil and grease from the extraction disk. Turn the small stopcock to allow the n-Hexane to pass through the Na2SO4 drying cartridge and into the collection flask. Transfer your sample to a preweighed aluminum pan being sure to rinse the flask thoroughly. Your sample is ready to be evaporated. Compact, single-place station with a small footprint. Dimensions: 10.5"L x 7"W, Single stations can be daisy-chained, together to run multiple samples at once for a faster sample throughput, Unit is made of durable PVC and plastic materials, Meets EPA Method 1664 requirements for Oil and Grease extractions, Uses disposable filter funnels* assembled with the extraction disk so clean-up is quick and easy eliminating the risk of cross-contamination *Options for Classic StepSaver™ glass funnels as well, Two separate chambers for extraction and elution help keep water out of your extract, Flexibility to choose your evaporation vessel; unit can accommodate pre-weighed StableWeigh™ vessels, a pre-weighed aluminum pan, or a pre-weighed Classic StepSaver™ flask Unit comes with the following Equipment and Consumables: 1-StepSaver Base – Assembled, 1-Inner Sleeve, 1-Tall Outer Sleeve, 1-Short Outer Sleeve , 2-Lid for 47mm Funnel , 2-1/4" Hose Barb, 1-Nylon Plug , 1-Male Luer Sodium Sulfate Cartridge Connector, 2-47mm Fluorosilicone Sealing Gasket, 1-Clamp for 47mm Funnel, 1-20-Liter Waste Carboy with 1/4" ID Tubing (10ft) & Fittings, 1-100mL Collection Flask, round bottom, 2-Disposable Funnels w/47mm UltraPrep Disk, 20pk (GUPF47EE), 1-Aluminum Weigh Dish, 105mm, 100pk (F93140DSH), 1-5.5 Gram Na2SO4 Drying Cartridge, 50pk (G1065), 1-O/G MDL Standard, 10mL tubes, 7mg HEM, 20pk (G3023), 1-O/G Standard, 10mL tubes, 40mg HEM, 20pk (G3025).