Description
Replacement sleeve for the VIQUA D4, D4+, D4 Premium, D4-V, D4-V+, IHS22-D4, and IHS12-D4 UV systems and obsolete Trojan UVMAX C, C+, D, D+, C4, C4+, and C4-V UV systems. The quartz sleeve keeps the UV lamp from shorting out and maintains the lamp's ideal operating temperature of 104 Degrees Fahrenheit. Mineral build-up hinders the lamp's effectiveness.