The Miele S2000 Series SS Hose 07736191 has been discontinued. An identical substitute is the 10817730 suction hose.
The 07736191 suction hose is used for Miele S2 and Classic Miele C1 Series classic canister vacuums that do not use an electric power brush. Just push the release button at the base of the connector near the canister to remove the hose from the canister or at the opposite end of the hose to remove the hose from the wand.