Additel ADT100-HTK [ADT100-HTK-8K-NPTM4-NPTF8Q] Hose Test Kit with 5 ft. Flexible Hose and 1/4 NPT (M) to 1/8 NPT (F) Hand-Tight Quick Connector, 8,000 psi. The Additel 100 series High Pressure Hose Test Kits are designed to extend your pressure calibrations to a convenient location to adapt from one pressure connection to another. Each test kit has 5 feet of flexible hose rated to 8,000 psi (550 bar) or 15,000 psi (1,000 bar) which connects a male NPT, BSP, or Metric connector to a variety of female quick connectors. Additel's specially designed quick connectors allow for hand-tight connection without the need for wrenches or Teflon tape. The Additel 100 series Hose Test Kits are a great accessory to any pressure pump or controller