In 1984 First Plast designed the PP monolithic drain well box, an innovative product if compared to heavy cement items in use. Our company has then introduced a whole range of wells boxes available in several sizes: traditional PP monolithic ones, Simplex serie, Serie2000 and lately the new Prato2000 green line. Drain well boxes are provided on each side with easily removable diaphragms to insert different diameters discharge pipes either to glue or using rubber joints. PP wells are extremely easy to handle and install.