Ultrapand and Ultrapand Connect PVC tubing Applications The Ultrapand PVC tube is a High Modulus (CR4) spreading tube, ensuring the transfer and dispersion in the soil of effluents for their final treatment by infiltration. The Ultrapand Connect PVC tube is the CR4 PVC connecting tube (without slit) which allows the complete realization of the Non Collective Sanitation (ANC) sector in CR4 tube. Benefits Consistent performance, even under heavy loads Reduced risk of blockage due to crushing Excellent resistance to accidental impact during installation Optimal flow and diffusion performance Ensuring a fast and flawless installation CSTB technical opinion (for Ultrapand only) Assembly consistency