Blue Anodized Aluminum Adapter (AN 912), 1.0 Inch Male NPT To 3/4 Inch Female NPT, Bushing

A document linked in the product details includes compatibility charts for various fluids with Eaton Aeroquip fittings. You'll want to review that PDF to make sure it's suitable for your application.

That's exactly the application this fitting is built for. It threads in male 1-inch NPT on one end and accepts a 3/4-inch female NPT connection on the other, all in one compact bushing body. No additional adapters needed to make that size reduction. The aluminum construction keeps it light, and the blue anodized finish adds surface protection against corrosion and wear, which holds up well in hydraulic and industrial fluid line service.

For stepping down a threaded NPT connection, this bushing is made to go from 1.0 inch male NPT on the outside to 3/4 inch female NPT on the inside, so it’s meant for exactly that reducer job in hydraulic or industrial fluid lines.