PVC corrugated drain pipe with geotextile filter. Perforated. Outer diameter 160±0.5mm. Package: 50m (roll). 6 rows of holes, per 1m - 300 perforation holes. Hole width: 1.5mm. Area of holes per meter: 31.5cm2. Weight: 860g/m. Weight of roll: 43kg. Price for meter!