The height from top of faucet to the top of spring is about 20". The wall bracket can be adjusted within a 6" range above the "add on" faucet which is 2" above main faucet base. Sent from my iPhone
Please see the manual below for dimensional information... https://www.etundra.com/pdf/t_and_s_mpz-8wln-06_manual.pdf
very solid. easy to install without a plumber if you are just replacing a similar size faucet size. not a substitute for a full size, but it gets the job done. plus u have faucets with it so the sprayer is just a second sprayer in our kitchen for pre rinsing during service and used for cleaning produce and such during prep time. i would gladly recommend this product for its listed use.