Slurry U-Series Nebulizer 4.0mL/min, includes UniFit Connector with 0.75mm ID x 1.6mm OD x 700mm long tubing (1 pc) and EzyLok Connector (1 pc).Optimum nebulizer gas flow rate is 1.0L/min and sample flow rate is between 1.5 & 2.5mL/min. Recommended not to exceed 4.0mL/min sample flow rate; however, lower gas & sample flow rates are OK. The backpressure should read ~40 psi at 1.0L/min gas flow rate. The Slurry nebulizer is ideal for aspirating slurries or suspensions as it has a high tolerance for particulates, up to 150um. TDS tolerance up to 1%.Replacement parts include P/Ns NFT-16-75 and EL-1.Recommend nebulizer maintenance tools, Fluka RBS25 (P/N NC9000117) and Eluo Nebulizer Cleaning Tool (P/N NC9462559). When nebulizer is not in use, best to store in the provided hard plastic case.Consider upgrading to our new Direct Connect (DC) Slurry to take advantage of the cost-effective design improvements.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001