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| Seal Size (inches) |
d | D3 | D4 | L3 | D7 | L6 | L8 |
| HG21-0.500 | 12.7 | 23.81 | 26.99 | 20.64 | 27.8 | 7.1 | 8.7 |
| HG21-0.625 | 15.88 | 26.99 | 33.34 | 22.23 | 30.95 | 8.7 | 10.3 |
| HG21-0.750 | 19.05 | 30.16 | 36.51 | 22.23 | 34.15 | 8.7 | 10.3 |
| HG21-0.875 | 22.23 | 33.34 | 39.69 | 23.81 | 37.3 | 8.7 | 10.3 |
| HG21-1.000 | 25.4 | 42.85 | 49.2 | 25.4 | 40.5 | 8.7 | 10.3 |
| HG21-1.125 | 28.58 | 46.02 | 52.37 | 26.97 | 47.65 | 10.3 | 11.9 |
| HG21-1.250 | 31.75 | 49.2 | 55.55 | 26.97 | 50.8 | 10.3 | 11.9 |
| HG21-1.375 | 34.93 | 52.37 | 58.72 | 28.58 | 54 | 10.3 | 11.9 |
| HG21-1.500 | 38.1 | 55.55 | 61.9 | 28.58 | 57.15 | 10.3 | 11.9 |
| HG21-1.625 | 41.28 | 63.5 | 69.85 | 34.93 | 60.35 | 10.3 | 11.9 |
| HG21-1.750 | 44.45 | 66.68 | 73.03 | 34.93 | 63.55 | 10.3 | 11.9 |
| HG21-1.875 | 47.63 | 69.85 | 76.2 | 38.1 | 66.7 | 10.3 | 11.9 |
| HG21-2.000 | 50.8 | 73.03 | 80.95 | 38.1 | 69.85 | 11.9 | 13.5 |
| HG21-2.125 | 53.98 | 76.2 | 84.12 | 42.85 | 73.05 | 11.9 | 13.5 |
| HG21-2.250 | 57.15 | 79.38 | 87.3 | 42.85 | 76.2 | 11.9 | 13.5 |
| HG21-2.375 | 60.33 | 82.55 | 90.47 | 46.02 | 799.4 | 11.9 | 13.5 |
| HG21-2.500 | 63.5 | 84.91 | 93.65 | 46.02 | 82.55 | 11.9 | 13.5 |
| HG21-2.625 | 66.68 | 88.9 | 101.6 | 49.2 | 92.1 | 14.3 | 15.9 |
| HG21-2.750 | 69.85 | 95.25 | 104.78 | 49.2 | 95.25 | 14.3 | 15.9 |
| HG21-2.875 | 73.03 | 98.43 | 111.13 | 52.37 | 98.45 | 14.3 | 15.9 |
| HG21-3.000 | 76.2 | 101.6 | 114.3 | 52.37 | 101.6 | 14.3 | 15.9 |
| HG21-3.125 | 79.38 | 104.78 | 120.65 | 55.55 | 111.15 | 18.3 | 19.9 |
| HG21-3.250 | 82.55 | 107.95 | 123.83 | 55.55 | 114.3 | 18.3 | 19.9 |
| HG21-3.375 | 85.73 | 114.3 | 133.35 | 55.55 | 117.5 | 18.3 | 19.9 |
| HG21-3.500 | 88.9 | 117.48 | 136.53 | 55.55 | 120.65 | 18.3 | 19.9 |
| HG21-3.625 | 92.08 | 120.65 | 139.7 | 58.72 | 123.85 | 18.3 | 19.9 |
| HG21-3.750 | 95.25 | 123.83 | 142.88 | 58.72 | 127 | 18.3 | 19.9 |
| HG21-3.875 | 98.43 | 127 | 146.05 | 61.9 | 130.2 | 18.3 | 19.9 |
| HG21-4.000 | 101.6 | 130.18 | 149.23 | 61.9 | 133.35 | 18.3 | 19.9 |
| Model | d | d3 | d7 | L1k | L5 | L6 |
| HG21-10 | 10 | 20 | 21 | 32.5 | 1.5 | 4 |
| HG21-12 | 12 | 22 | 23 | 32.5 | 1.5 | 4 |
| HG21-14 | 14 | 24 | 25 | 35 | 1.5 | 4 |
| HG21-16 | 16 | 26 | 27 | 35 | 1.5 | 4 |
| HG21-18 | 18 | 32 | 33 | 37.5 | 2 | 5 |
| HG21-20 | 20 | 34 | 35 | 37.5 | 2 | 5 |
| HG21-22 | 22 | 36 | 37 | 37.5 | 2 | 5 |
| HG21-24 | 24 | 38 | 39 | 40 | 2 | 5 |
| HG21-25 | 25 | 39 | 40 | 40 | 2 | 5 |
| HG21-28 | 28 | 42 | 43 | 42.5 | 2 | 5 |
| HG21-30 | 30 | 44 | 45 | 42.5 | 2 | 5 |
| HG21-32 | 32 | 46 | 48 | 42.5 | 2 | 5 |
| HG21-33 | 33 | 47 | 48 | 42.5 | 2 | 5 |
| HG21-35 | 35 | 49 | 50 | 42.5 | 2 | 5 |
| HG21-38 | 38 | 54 | 56 | 45 | 2 | 6 |
| HG21-40 | 40 | 56 | 58 | 45 | 2 | 6 |
| HG21-43 | 43 | 59 | 61 | 45 | 2 | 6 |
| HG21-45 | 45 | 61 | 63 | 45 | 2 | 6 |
| HG21-48 | 48 | 64 | 66 | 45 | 2 | 6 |
| HG21-50 | 50 | 66 | 70 | 47.5 | 2.5 | 6 |
| HG21-53 | 53 | 69 | 73 | 47.5 | 2.5 | 6 |
| HG21-55 | 55 | 71 | 75 | 47.5 | 2.5 | 6 |
| HG21-58 | 58 | 78 | 78 | 52.5 | 2.5 | 6 |
| HG21-60 | 60 | 80 | 80 | 52.5 | 2.5 | 6 |
| HG21-63 | 63 | 83 | 83 | 52.5 | 2.5 | 6 |
| HG21-65 | 65 | 85 | 85 | 52.5 | 2.5 | 6 |
| HG21-68 | 68 | 88 | 90 | 52.5 | 2.5 | 7 |
| HG21-70 | 70 | 90 | 92 | 60 | 2.5 | 7 |
| HG21-75 | 75 | 99 | 97 | 60 | 2.5 | 7 |
| HG21-80 | 80 | 104 | 105 | 60 | 3 | 7 |
| HG21-85 | 85 | 108 | 110 | 60 | 3 | 7 |
| HG21-90 | 90 | 114 | 115 | 65 | 3 | 7 |
| HG21-95 | 95 | 119 | 120 | 65 | 3 | 7 |
| HG21-100 | 100 | 124 | 125 | 65 | 3 | 7 |
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