USWF Replacement for QS-212 Quartz Sleeve | Fits the VIQUA SQ-PA, SC1, & VT-1 Series UV Systems Choose a Pack Size::Single The DGD-5005 cartridge uses a

The DGD-5005 cartridge uses a performance enhancing dual-gradient density filtration to achieve up to three times the dirt-holding capacity of similar size sediment cartridges

The S1 cartridges are manufactured from a pleated cellulose media and are designed for general water filtration purposes

F4-50+ systems and the discontinued Trojan PRO15 system

This system features an easy-to-use LCD control valve head which allows maneuverable setting and monitoring of important operational information

& 4CR2 UV systems

USWF Replacement for QS-212 Quartz Sleeve | Fits the VIQUA SQ-PA, SC1, & VT-1 Series UV Systems Choose a Pack Size::Single The DGD-5005 cartridge uses aThe quartz sleeve is an important part of the UV water treatment system. It protects the UV lamp from coming in contact with the water while allowing the UV light to permeate the water. Minerals from the water will build up on the sleeve over time causing the sleeve to become cloudy not allowing the UV light to permeate the water as effectively. How quickly the minerals build up on the sleeve will vary depending on your water hardness, and if you have