Our OneHydraulics Adapter, Thread Gauge, and O-Ring Seal Kits are essential tools for identifying, connecting, and maintaining a wide range of hydraulic fittings. Adapter kits include popular connection types such as DIN, BSPP, Metric, JIC, NPT, and Komatsu, providing versatile solutions for virtually any hydraulic system. Thread Gauge ID Kits—available in JIC, NPT, ORB, ORFS, BSP, and Metric—ensure quick and accurate thread identification to prevent mismatched fittings. Now featuring our premium O-Ring Seal Kits, including Male ORB, ORFS, BSPP & Metric Bonded Seals, and SAE Code 61 & Code 62 Flange Seals, this comprehensive collection delivers everything you need to ensure reliable, leak-free connections. Compact, organized, and portable, these kits are perfect for keeping in your shop, service truck, or retail space for fast, efficient hydraulic maintenance and repairs.