The polypipe polysewer pssp1 seal pack delivers certified sealing performance engineered for adoptable gravity sewer systems. Manufactured from high-quality epdm material, this 150mm seal pack meets stringent bs en 13476-3 and wis 4-35-01 industry standards. Designed for projects requiring adoption by sewerage or water authorities under sewers for adoption 7th edition guidelines, this seal pack provides reliable integration across multiple system configurations. Compatible with small diameter applications from 110mm to 300mm and larger ridgisewer systems spanning 400mm to 600mm. The blue epdm construction ensures long-term durability and consistent sealing integrity across demanding installation environments. Part of the comprehensive polysewer gravity sewer system from polypipe building products. Features & benefits: certified to bs en 13476-3 and wis 4-35-01 standards for quality assurance. Suitable for projects requiring adoption by sewerage or water authorities under sewers for adoption 7th edition. Compatible with small diameter systems from 110mm to 300mm. Compatible with larger ridgisewer systems from 400mm to 600mm. High-quality epdm material delivering reliable sealing performance and durability. Ideal for adoptable gravity sewer installations, municipal drainage projects, and residential or commercial developments. Size: 150mm. Colour: blue. Material: epdm.