Combi Fitting B21 For connection above or below traditional cable ladders. Material # Weight, kg (lbs) Pack Zinc plated 11 491 59 0.44 (0.97) 5 Hot Dip Galvanized 11 492 59 0.48 (1.06) 5 Stainless/Acid proof 11 493 59 0.45 (0.99) 5 Combi Fitting B21 90° For connection parallel to traditional cable ladders. Material # Weight, kg (lbs) Pack Zinc plated 11 491 91 0.44 (0.97) 5 Hot Dip Galvanized 11 492 91 0.46 (1.01) 5 Stainless/Acid proof 11 493 91 0.45 (0.99) 5