Used as extraction apparatus where the extracting solvent is heavier than water.Extractor top joint is 45/50 and side arm joint is 24/40. Designed for a sample size of approximately 1000ml plus 200 ml of solvent. Multiple units can be assembled and set up using a minimum of bench space. Designed for use on EPA Priority Pollutant Samples. Cuts time and space over the use of separatory funnels.