The hose is the part people under-buy, and the part that hurts. At 10,000 psi a failure is not a leak, it is an injection risk. Everything in this category is rated at or above 700 bar with a safety factor built in, with the couplers to match.

Buy the hose longer than you think and keep yourself out of the load path – the whole point of a remote pump is that you are standing somewhere safe when the ram takes the weight. Never join two hoses to make up length with a low pressure adaptor, and never use a coupler that is not rated for the same pressure as the hose.

Couplers at this pressure will not connect while there is trapped pressure in the line. Crack the pump release valve first, then push them together. Forcing a pressurised coupler damages the ball seat, and from then on it weeps every time.

Keep the dust caps on. Grit in a 700 bar coupler ends up in the pump check valves.