One-piece moulded without any joints, seams or welds.Rustproof and leak-proof.Hygienic and suitable for potable water.Computerised design for excellent strength Lightweight and easy to transport.Easy to install.Durable and economical.100% virgin material.FDA approved material.Non-porous and does not allow the water to get contaminated.Impermeable to roots of trees.Also avaliable in double-layer.