The cheapest and best way to get powertorque snorkel hose is by buying a grey water hose from the reject shop, 8 meters for around $5, the hose fitted to this mower is easy enough to find or they can be repaired as I have seen before.
Its most likely a 125, as that cowling has a bump for the decompressor, on the back whereas most 160's have a slightly bigger cowling.