Mine is similar to this one here. https://www.amazon.com/Brass-commercial-kitchens-Department-requirements/dp/B07R2D26H6/ref=sr_1_32?crid=TFPJC0G58EEX&keywords=prerinse+sprayer+hose&qid=1557126342&s=gateway&sprefix=prerinse+s%2Caps%2C138&sr=8-32

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The main differences between yours and mine is the button for spraying water. Yours after a while might need a replacement trigger due to the smaller button wearing down the inside of the trigger.