This fits your. Make sure this fits by entering your model number. Brand: LSE Lighting® - Professional Ultraviolet Lighting Length: 33' - Base: 1pin on Each End Application Usage: Disinfection, Ozone; Glass Type: Quartz Glass Tube; Effective Hours Rating: 12,000hrs This UV Bulb by LSE Lighting brand is 100% compatible replacement for use with Aquafine Models CSL-8R, CSL-10R, DW-8, DW-400, DWS-12, DWS-15, DWS-24, MP-2-SL, PV-CL-1, SL-1. All lamps listed are compatible LSE Lighting brand UV products. We do not sell Aquafine brand lamps. All Aquafine brand names, trademarks and logos are property of Aquafine. Warning: Ultraviolet Germicidal UVC light is harmful and dangerous to your eyes and skin. Please Use safety gear during installation.