<b>Main accessories</b><br>1.The thickened 304-stainless steel shell with embedded sealing rings is safe and reliable, able to withstand the impact of water pressure up to 22lb.<br>2.When the lamp fails, the red fault indicator on the electronic ballast will flash with beep alarms, so you can make sure of its working state clearly at a glance.<br>3.The UV light with a high-transparency quartz tube is more efficient in sterilization and much longer ineffective service.<br><br> <b>Installation</b><br>1.Connect the black lamp holder of the connecting line with one end of the lamp tube.<br>2.Insert the other end of the lamp tube into the lamp holder of the ballast and then connect the other end of the connecting line with the lamp holder of the ballast.<br>3.Put the lamp tube into the stainless steel shell, mount the shell on the wall in place, and connect the power supply. That’s all!<br><br><b>Friendly reminders</b><br>1.Please read the manual carefully before you use it.<br>2.The water in the chamber of this equipment can be very hot during an extended 3-4 hours of no water flowing. It's recommended to open the faucet until the hot water has been purged from the chamber. Keep the human body away from the faucet during this time.<br>3.As the products are being upgraded, the installation guide in the instructions of several products may not suit the actual products. Please refer to the actual product received.<br>4.Please search " B095752Z4S" for the replacement UV bulb.