Gilson 250513154 4-Port SPE Gas Manifold. A specialized gas distribution manifold engineered to deliver uniform gas pressure and flow across solid phase extraction (SPE) columns and sample preparation stations. MPN / Catalog Model: 250513154 Manufacturer & Line: Gilson, Inc. / ASPEC & SPE Sample Preparation Accessories Port Configuration: 4-port output design engineered for simultaneous, controlled gas distribution across up to four SPE cartridges or lines Functionality: Delivers regulated positive-pressure gas or inert drying gas (such as nitrogen or compressed air) to facilitate solvent evaporation, cartridge conditioning, and uniform fluid processing Material Construction: Manufactured from high-grade, chemically inert materials to resist degradation from corrosive organic solvents, acid vapors, and mobile phase reagents System Integration: Designed for direct integration with Gilson manual or automated solid phase extraction platforms, manifold assemblies, and drying stations Primary Application: Solid phase extraction (SPE) sample cleanup, nitrogen blowdown drying, sample concentration, and bioanalytical sample preparation prior to LC-MS or GC-MS analysis