Des. Aquamax dual wavelength UV bulb, 185/256nm Back Catalog number: 5001012811 Availability: In the manufacturer's stock Price on request - + Recommended 11-4110 Long Life Deuterium Lamp (2000 hr) Price on request 11-4111 Long Life HiS Deuterium Lamp, RFID, VWD (2000 hr) Price on request 11-4143 Lamp, ACQUITY PDA/TUV 2489/2998 Performance Mainte Price on request