Twister spray chamber with aux gas port (Organics), Helix CT locking screw & seal (N0777731). Includes UniFit with 1.6mm OD x 0.75mm ID x 700mm long tube (1 ea). Made of borosilicate glass, 50mL volume. Compatible with PerkinElmer 2/4/5/7/8x00 DV Series ICP-OES.The Twister features a baffle, which efficiently removes larger droplets, producing a smaller mean droplet size entering the plasma. Resulting in a more robust plasma, this Twister is an excellent choice for applications requiring the best possible precision for organic sample matrices.The unique Helix CT interface consists of two parts, a ConstantTorque Locking Screw & chemically inert PressFit ferrule. The main feature of the Helix CT is the built-in, ratcheting torque control mechanism that allows for a consistent, zero dead volume, inert seal of the nebulizer.Replacement parts include NC1943061 & NC2081825, suggested to replace every 6 months.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001