Kohler R24612-BN Aquifer Filtered Shower Head Attachment
- 8,000 gallon filter capacity
- 1.75 gpm maximum flow rate
- 600 ppm maximum TDS supported
- Screw-in attachment to an exposed shower arm
- Reduces chlorine and odor, controls scale
- Brushed nickel finish
Last refreshed Sep 24, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A screw-in shower filter that adds chlorine and odor reduction to the showerhead you already have. It does not replace the showerhead, and the filter cartridge is a recurring part.
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ASIN: B0CKS4LC55Model: Aquifer R24612Category: Showerhead Filters
Overview
Kohler makes the Aquifer as an attachment that screws onto an exposed shower arm and works with your existing showerhead. Ultra filtration reduces chlorine and odor and controls scale in the water before it reaches the head.
The reason to buy is adding filtration without swapping the showerhead, with a clear flow and TDS limit. The limit is that it needs an exposed shower arm and the filter reaches the end of its life on a schedule.
Who it's for
People with dry hair or skin who attribute it to shower water can add this between the arm and the head. Owners of hard or high-TDS supplies should confirm the limit first.
Pros and cons
- Works with existing showerhead
- Reduces chlorine and odor
- Large gallon capacity
- Compact, plastic body
- Needs an exposed shower arm
- Filter life is limited
- Not a showerhead by itself
- Adds height below the arm
Performance notes
Water passes through an ultra filtration stage before it reaches the showerhead, which cuts chlorine and odor and controls scale. Flow tops out at the listed rate, so a higher-flow head will be limited by the filter. Capacity and the time-based filter life decide when it needs replacing, whichever comes first.
Specifications
| Brand | Kohler |
|---|---|
| Model | Aquifer R24612 |
| Dimensions & fit | |
| Dimensions | 2.19 x 2.19 x 4.88 inches |
| Capacity & performance | |
| Maximum flow rate | 1.75 gpm |
| Capacity | 8000 gallons |
| Filter life | 6 months |
| Construction & materials | |
| Material type | Plastic |
| Compatibility & installation | |
| Installation type | Screw-in, exposed shower arm |
| Included components | |
| Included Components | Aquifer showering hub |
| Warranty & support | |
| Maximum TDS | 600 ppm |
| Other details | |
| Purification method | Ultra filtration |
Frequently asked questions
How often does the Kohler Aquifer filter need replacing?
The filter life is listed as 6 months, with a capacity of 8000 gallons. The listing gives no replacement cartridge model.
Does the Kohler Aquifer replace my showerhead?
No. It attaches to an exposed shower arm and works with your existing showerhead.
How do I install the Kohler Aquifer?
The description says to attach it to an exposed shower arm. The installation type is screw-in.