USWF RLQ-330HO UV Lamp/Sleeve Combo | Fits the USWF 4C101 UV Systems Choose a Pack Size::2 PACK They are designed to be

They are designed to be combined with compatible black carbon gravity filters like the BB9-2 for additional filtration performance

Combined in the cartridge is an outer layer of 70 microns

The filter should not be hard to turn

standard output UV lamp rated for 9

USWF RLQ-330HO UV Lamp/Sleeve Combo | Fits the USWF 4C101 UV Systems Choose a Pack Size::2 PACK They are designed to beGenuine US Water Filters replacement Lamp Sleeve for the USWF 4C101 UV system. USWF lamps and sleeves are backed by a one year, no hassle warranty. The high performance UV lamp boasts a 10,000 hour lamp life, which means low hassle and maintenance for 12 months between lamp changes. After 10,000 hours the UV light weakens and isn't strong enough to properly treat your water. Replacing your lamp annually ensures optimal system performance. The quartz