LSE Lighting UV Bulb 11W for Laguna Pressure Flo Filter 700 1400 PT-1520 Replacement UV Bulb for Laguna Pressure Flo Filter Model 700 & 1400 Length: 8 3/4" Long Base: 4Pin Lamp T5 Ceramic Base [4pin on one End] Glass Type: Quartz Glass Tube - 11W - Life: 10,000hrs - Provides Superior Water Purification Brand: LSE Lighting