Does not fit Rainfresh R830 water disinfection system as claimed. Connector end is too large for quartz tube. To add insult to injury I did not find out in the 30 day return window so now I'm stuck the wrong product and paid $44.00 for it. WHAT A RIP OFF!!!!!
[[ASIN:B00I3L0KMQ LSE Lighting UV Bulb for Rainfresh R830L 400128 Water Sterilizer 38W 8GPM]