According to BS4660


U-PVC UNDERGROUND DRAINAGE & SEWER PIPE according toBS 4660

Nominal Size

(mm)

Outside Diameter (mm)

Wall Thickness

MIN

MAX

MIN

MAX

82 (3")

82.4

82.8

3.2

3.8

110 (4")

110

110.4

3.2

3.8

160 (6")

160

160.6

4.1

4.8