Using this T&S Equip 5HSE44 stainless steel hose is easy. First, make sure your pre - rinse unit is turned off. Then, connect the 3/4 - 14 UN female inlet and outlet of the hose to the appropriate parts of your unit. You're good to go! As for temperature and pressure, don't expose the hose to pressures above 125 psi or below 20 psi, and keep the temperature between 40 F and 140 F. For maintenance, regularly check the hose for any signs of wear or damage, such as cracks in the stainless steel outer layer or the rubber inner hose. If you notice any issues, replace the hose right away. Since it's NSF certified, it's great for food - related applications, but always make sure to clean it regularly to maintain food safety standards.