VeeSpray DC Nebulizer, includes UniFit Connector with 0.75mm ID x 1.6mm OD x 750mm long tubing (1 pc) & DC Gas Fitting Type 11 with ratchet connector (1 pc). Compatible with Analytik Jena ICP-MS and Leeman.Optimum nebulizer gas flow rate is 1.0L/min & sample flow rate best between 1.5 - 2.5mL/min, must be pumped. Backpressure should read ~40 psi at 1.0L/min gas flow rate. VeeSpray is a V-groove design made from ceramic, ideal for greatest resistance to large particulates, high TDS & HF. Tolerates up to 30% TDS & 300um particulates, providing a robust, virtually unblockable nebulizer. Replacement parts include STT-16-75, 70-803-1350, 70-803-0780, 70-803-1349.Recommend nebulizer cleaning solution is Fluka RBS25 (P/N NC9000117). When nebulizer is not in use, best to store in the provided hard plastic case.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001