Couplings according to North American Standard NFPA
Couplings according NFPA 1963 for internal and external binding suitable for delivery- and suction hoses. Couplings Storz system for water supply lines.
| 100/4" | 115 / 4 17/32" | NH 4" | 1,100 | 40398937 | |
| 100/4" | NH 4½" | 1,115 | 40375833 | ||
| 100/4" | Ø116/138 mm | 1,000 | 30329731 | without thread 1) | |
| 125/5" | 148 / 5 53/64" | NH 4" | 1,600 | 30298037 | |
| 125/5" | NH 4½" | 1,270 | 30293931 | ||
| 125/5" | Ø 118/148 mm | 1,700 | 30293831 | without thread 1) | |

