Product Name: HDG Class 4 Steel Conduit Size: 20MM 25MM 32MM Outside Diameter: 19.7mm-20mm 24.6mm-25mm 31.6mm-32mm Wall Thickness: 1.6mm±0.15mm 1.6mm±0.15mm 1.6mm±0.15mm Length: 3M/3.75M/4M 3M/3.75M/4M 3M/3.75M/4M Pack. qty: 10,100,400 10,100,320 10,100 Material: Q195, Q235 Surface treatment: Hot Dipped Galvanized Standard: BS4568/EN61386/ AS/NZ 2053.7