Create strong and reliable pipe joints for irrigation and water management with Weld-On 721 PVC Solvent Cement. This blue PVC cement fuses Schedule 40 pipes and fittings (up to 6 inches) and Schedule 80 (up to 4 inches). It's ideal for irrigation, DWV systems, pools, spas, plumbing, and non-pressure applications. Its medium viscosity and quick setting time ensure smooth application and efficient PVC welding.