C-Series Injector Assembly - K Lt Green

C-Series Injector Assembly, Light Green (K) is a color-coded brine-draw injector for Nelsen C-Series valves, with the light-green K rating setting its flow size.

• Light-green, K-rated injector for C-Series control valves
• Color coding identifies its specific flow and tank-size match
• Draws brine or regenerant into the media bed during regeneration
• Complete assembly for straightforward replacement of a worn unit
• Very light part, only a few grams in shipping weight
• Genuine Nelsen component for C-Series valves

Choose the light-green K injector when your C-Series valve was originally built with that rating and you need to restore proper brine draw after clogging or wear. Matching the injector color and size to the valve's design is essential, since an incorrect injector changes draw rate and can leave media under-regenerated. Verify the K rating against your valve's specification, and inspect the injector screen for debris during installation.

The Heart of the Regeneration Draw

The C-Series Injector Assembly, identified by its light green K color code, is the small but critical part that creates the suction a softener uses to draw brine during regeneration. As water flows through the injector's precise passage, it produces a vacuum that pulls concentrated brine out of the salt tank and moves it through the resin to recharge it. The color code marks the specific flow size, so the light green K injector is matched to a particular tank and capacity within the C-Series range.

Symptoms of a Failing Injector

Because the injector's passages are narrow, they are prone to clogging with sediment, salt fines, or mineral scale, and even a partial blockage undermines the whole regeneration. The classic sign is a softener that runs its cycle but no longer produces soft water, because it is not drawing brine the way it should. You may also notice the salt level in the tank stops dropping. Cleaning or replacing the injector assembly is often the fix that brings a struggling softener back to full strength.

Get the Correct Color Code

The color code matters, because an injector sized for the wrong tank will not draw brine correctly. Confirm you need the light green K version for your specific C-Series valve and tank before ordering, and if you are not sure, we are glad to help you identify the right one. Tell us your valve model and tank size and we will verify the match. We include the documentation we have, and the Water Softener Plus team can walk you through the swap so regeneration returns to normal.