Devised to fit pipes with an inner diameter of 148-160mm for effective drainage management. Durable rubber construction ensures long-lasting performance and resistance to wear and tear. Inflatable devise allows for quick and easy installation and removal for various drainage needs. Max pressure rating of 0.25 Bar (3.6 PSI) guarantees reliable sealing and prevents leaks. 4mm wall thickness provides enhanced strength, making it ideal for both residential and commercial applications., Manufacturer: FCOIN