100% compatible with Danner OEM sleeve, but not made by Danner Special end-fitting same as with OEM sleeve 14.5 inches long This Caprock brand quartz sleeve is compatible with the Danner / Pondmaster 12982 OEM sleeve selling at a much higher price, but is not made by Danner. It measures about 14.5 inches and is about one inch in diameter, for use with 20 watt systems and Danner lamp number 12972 in Danner / Pondmaster Clarifier Supreme 02920, 2920 and Pressurized Filter PUV-2000.
All sleeves listed are compatible brand (Caprock) UV products. We do not sell Danner/Pondmaster brand sleeves. All Danner brand names, trademarks and logos are property of Danner.