PVC Pump Tube 2tag 1.14mm ID Red/Red (PKT 12).Tag Colors: Red/RedID mm: 1.14Wall Thickness mm: 0.86OD mm: 2.86Overall Length: 455mm (152mm spacing between tags)Number of Tubes Per Pack: 12Physical Properties: Thermoplastic, PVC based material with plasticizerSpecial 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. For >35% Nitric Acid and >25% Hydrofluoric Acid we recommend using Viton P/N VS0.76-BLK.Limitations: Potential leaching of plasticizersGlass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001