Injectory Assy for CSI Signature 1, Signature 2, or WaterSoft Isobar 2 softeners:

• #1--White Injector: 24,000 & 32,000 grain softeners
• #2--Blue Injector: 48,000 & 64,000 grain softeners
• #3--Yellow Injector: 96,000 & 128,000 grain softeners

The white injector is also used in the following iron/sulfur filters:

• WaterSoft Centurion / Centuri 
• WaterSoft Sidewindr (Isobar II version only)
• CSI Nitro injector assembly (white injector)
• CSI Nitro Pro (2 white injectors used if using the Oxyclean attachment)
• CSI Sidekick (2 white injectors used if using the Oxyclean attachment)