I don't think this is for the Digipro. The tail end of the Digipro handle on the nozzle connects to itself; also the machine end on the Digipro is cordless and this one has a cord pigtail on it. Try again?
Picture below shows the detail of the tail end of the nozzle handle and the shape of the wiring where it plugs into the machine.
Since some Riccar/Simplicity canisters are made in Korea, your hose may also be for another Korean vac like an LG or a Samsung....probably an older model. I once saw an LG canister vac with a handle identical to this style.
Here's another possibility - and I think I've got a match because this vac requires a pig-tail connection to the canister: It's from a Shark power nozzle canister vac! (They must also be made in Korea....)