Contour Flared End PVC Pump Tube 3tag (95mm spacing) 0.51mm ID Orange/Yellow (PKT 6).Tag Colors: Orange/YellowID mm: 0.51Wall Thickness mm: 0.86OD mm: 2.23Overall Length: 455mm (95mm spacing between tags)Number of Tubes Per Pack: 6Physical Properties: Thermoplastic, PVC based material with plasticizerMaterial: Made from Tygon R3603/R3607 or equivalent.Special Properties: Inexpensive all-around tubing for general laboratory applicationsChemical Compatibility: Excellent for aqueous solutions of the following acids and concentrations, up to 35% Nitric Acid, up to 37% Hydrochloric Acid, up to 25% Hydrofluoric Acid, up to 30% Hydrogen Peroxide.Limitations: Potential leaching of plasticizersGlass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001