The straight water pipe designs ensures smooth and unobstructed water flows, improving filtration efficiency The 1.5inch / 2inch flexible joint is and adjust, and can flexibly connecting different swimming pool systems without affecting efficiency , none complicated tool or professional skills is required Make of PVC, light weight, ensuring durability and bear various environmental conditions Not only suitable for traditional swimming pools, but also for various water filtrations systems such as spa pools and fish pond, Manufacturer: LSTTBO