IMPORTANT: CURRENT OR OBSOLETE SWITCHES CAN LOOK THE SAME BUT HAVE A DIFFERENT PRESSURE SETTING. NEWER SWITCHES SHOULD HAVE A PART TAG WITH A PART NUMBER AND PRESSURE SETTING. OLDER SWITCHES MAY HAVE NO MARKINGS. IF YOU ARE NOT SURE OF THE PRESSURE SETTING YOU NEED, CONTACT HWH TECHNICAL SERVICE BEFORE ORDERING A SWITCH. THE SYSTEM WILL NOT FUNCTION PROPERLY OR MAY BE DAMAGED IF THE WRONG SWITCH IS USED.
