Viqua (QS-212) Replacement Quartz Sleeve for UV Systems Blue White (F-40500LN-8) F-400N Inline Rotameter Flow Meter 0.5 - 5 GPM; 1/2" FPT designed to measure flow rates

designed to measure flow rates from 2 to 20 GPM through 1" FPT connections

Push the diverter valve back up to return to standard unfiltered tap water

Cartridge format eliminates need for drain lines or backwash cycles

Always verify your housing is rated for the ELF XL series before ordering

Viqua (QS-212) Replacement Quartz Sleeve for UV Systems Blue White (F-40500LN-8) F-400N Inline Rotameter Flow Meter 0.5 - 5 GPM; 1/2" FPT designed to measure flow ratesViqua Replacement Component Viqua QS 212 Replacement Quartz Sleeve 100% fused silica quartz sleeve engineered for maximum UV transmittance in residential UV disinfection systems OEM Viqua Part High Transmittance Fused Silica WHY IT WORKS Optical Clarity for UV Performance 100% Fused Silica Medical grade quartz construction delivers superior UV transmission compared to standard glass sleeves High Transmittance Engineered to allow maximum UV C light to