UV Lamp/Quartz Sleeve Replacement Instructions Sterilight QSO-410 UV Quartz Sleeve Replacement for these systems: Viqua VH410M UV System Sterilight QSO-410 UV Quartz Sleeve Replacement: All Sterilight UV systems include a quartz sleeve, which surrounds the lamp. The quartz material used in Viqua’s quartz sleeves are a 100% fused silica which lend to the sleeve’s high transmittance. A high transmittance is important as the UV light must travel through the sleeve to get to the water. All replacement sleeves are shipped with two o-rings.
