PONDMASTER 10-Watt Ultraviolet Lighting Replacement Sleeve (12981)

Glowing Monitor Halo Ring, Visible from any Angle Immediately Shows it's Working; Comes Complete with 9000 Hour, Long Life 10 Watt Lamp and Water Tight Quartz Sleeve; Includes Transformer and 18' Grounded Power Cord; Black Color is Unobtrusive Whether used In or Out of the Water; 3/4" Barbed Fitting for Inlet and Outlet