Des. Aquamax dual wavelength UV bulb, 185/256nm Back Catalog number: 5001012811 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10473 Deuterium Lamp (1000 hr) Price on request 12648 UVC Lamp 9W/78 for UVE-photochemical Price on request 11-4110 Long Life Deuterium Lamp (2000 hr) Price on request