Amazon.com: S410RL-HO Replacement UV Lamp| Fits the VIQUA VH410, SP410-HO, SC-410, & SPV-8 Series UV Systems | Made in the USA, US Water Filters : Patio, Lawn & Garden
Viqua Sterilight S410RL-HO UV Lamp from Aquatell
LSE Lighting Combo Package S410RL-HO UV Bulb and QS-410 Sleeve with Orings - Walmart.com