The Trojan 650659 is an ultraviolet (UV) water filter which is:
The Trojan 650659 - PRO-30 UV Max Ultraviolet System contains a 200 watt UV light that disinfects your home's water. This Trojan UV system is more effective than chlorine against a broader range of organisms. This UV light filter contains a stainless steel water chamber and has a safety cap. This UV disinfection system has combination 1 1/4 inch Male Pipe Thread (MPT) and 1 inch Female Pipe Thread (FPT) inlet/outlet connections, and has a maximum flow rate of 30 gallons per minute (gpm).
The Trojan 650659 specifications: