Foxx Life Sciences PUREGRIP HPLC Solvent Reservoir used in upstream Caps & Bottle system offer the safest & most ergonomic lab safety solution in the industry. This system comes with Patented VersaCap, a Class VI PTFE Manifold, chemically resistant Viton O-Ring.The sealed VersaCap design that Foxx offers eliminates tubes twisting as you thread the cap & eliminates the tubes from sliding in & out of the container. Each assembly comes with GL45 Cap & Manifold Assy., High quality fittings for 6 x 3.2mm(1/8") OD Tubing, 6 x 1.6mm(1/16") OD Tubing & 6 x Plugs of 6.4mm(1/4") for blocking of unused ports.