Viqua (S320RL-HO) UV Replacement Lamp Bulb Omnipure (E5521-P) E-Series 10 Mic. Carbon Block With Scale Inhibitor 2.5" X 10" 10 MIC.CARBON BLK./PHOSPHATE and carbon block cartridges

and carbon block cartridges

Mechanical meter control valve with demand-initiated regeneration for residential and light commercial water softeners up to 12" diameter

If you're using this filter as RO pre-filtration

COMPENSATION Integral Temperature Element

Viqua (S320RL-HO) UV Replacement Lamp Bulb Omnipure (E5521-P) E-Series 10 Mic. Carbon Block With Scale Inhibitor 2.5" X 10" 10 MIC.CARBON BLK./PHOSPHATE and carbon block cartridgesThe Viqua S320RL HO (High Output) UV Replacement Lamp is the original OEM bulb engineered for Sterilight SPV 6, SP320 HO, SC 320, and SCM 320 ultraviolet disinfection systems. This high output lamp delivers reliable 254nm UV C germicidal output with a rated service life of 9,000 hours or 12 months. SPECIFICATIONS S320RL HO Lamp Performance Data Model Number S320RL HO High Output version Lamp Life 9,000 hrs 12 month replacement cycle UV Output 254nm