LSE Lighting compatible 25W UV Bulb QL25 for Pentair 175230 sterilizer Brand: LSE Lighting Wattage: 25W, Length: 17.375" (441.33mm), Base Type: T5FP 4pin Pentair Base Warranty: 1 year [recommend to replace every 12 month] This UV replacement lamp by (LSE Lighting) brand is 100% compatible for use with Pentair 25W 175230 QL25 Sterilizer. All lamps listed are compatible brand (LSE Lighting) UV products. We do not sell Pentair/Lifegard/Aquatics brand lamps. All Pentair/Lifegard/Aquatics brand names, trademarks and logos are property of Pentair/Lifegard/Aquatics.