http://www.bigalspets.com/aqua-medic-helix-uv-replacement-lamps.html?___store=bapetsusen18416Aqua Medic Helix UV Replacement Lampshttps://smhttp-ssl-30510.nexcesscdn.net/media/catalog/product/1/9/19877-M_1.jpg12.9900USDOutOfStock/FISH/FISH/UV Sterilizers/FISH/UV Sterilizers/Bulbs & Quartz SleevesReplacement bulbs for Helix U.V. sterilizers. Manufacturer recommends you replace bulbs every 12 months depending on the duration of use. Replacement bulb for Helix 5W U.V. sterilizer. Manufacturer recommends you replace bulbs every 12 months depending on the duration of use.0.0000545Aqua Medic Replacement Lamp For Helix UV Sterilizer - 5 W12.990019.9900http://www.bigalspets.com/aqua-medic-replacement-lamp-for-helix-uv-sterilizer-5-w.html?___store=bapetsusenhttps://smhttp-ssl-30510.nexcesscdn.net/media/catalog/product/1/9/19877_7.jpgOutOfStock5 W