Body size Body size Other 3 Piping Material Nipple: KBN Elbow Different Diameter Female Connector Module: KBD Different Diameter Module: KBR Model KBD2-1 KBD3-2 KBD4-3 D1 15.2 20.9 26.5 D2 17.6 25.2 32.3 D3 21.0 28.6 30.4 L1 39.0 38.0 44.5 L2 36.0 42.6 55.0 L3 10.1 11.4 12.2 L4 15.5 19.5 24.0 A1 22.5 27.0 38.5 A2 35.5 34.5 40.0 Weight (g) 18.0 28.9 59.5 Model KBR2-1 KBR3-2 KBR4-3 D 21.0 28.6 30.4 L 21.5 25.0 30.5 A 8.0 10.0 14.0 Weight (g) 2.8 4.3 8.8 Model KBN1 KBN2 KBN3 KBN4 D 16.8 21.0 28.6 30.4 L 35.0 39.0 41.5 A 14.0 15.0 16.5 17.0 2.9 4.6 7.2 10.2 Weight (g) Series KB 220