Shower technical guide
Kohler Coralais Single-function showerhead, 9.5 lpm: technical guide
Kohler Coralais Single-function showerhead, 9.5 lpm is a shower from Kohler. Delivering long-lasting performance at a competitive price, this Coralais single-function showerhead adds quality and style to your bathroom. This showerhead offers a scratch-resistant finish that ensures years of reliable performance. Pair it with Coralais faucets and accessories for a unified, coordinated look.
- Chrome finish is easy to keep clean
- Single-function showerhead delivers a full, consistent spray, regardless of water pressure
- MasterClean sprayface features an easy-to-clean surface that withstands mineral buildup and maximizes spray performance
Best for
- Wall-mounted showers
Pros
- Chrome finish is easy to keep clean
- Single-function showerhead delivers a full, consistent spray, regardless of water pressure
- MasterClean sprayface features an easy-to-clean surface that withstands mineral buildup and maximizes spray performance
- Flexible spray nozzles are easy to clean
- 2.8 inch (70 mm) diameter sprayface
Cons
- Spray strength depends on your water pressure, which the shower itself cannot raise
Key specifications
As stated by the maker.
- Brand
- Kohler
- Collection
- Coralais
- Product number
- K-11637IN
- Type
- Single-function showerhead, 9.5 lpm
- Category
- Showerheads
- Overall length
- 2-3/4 in
- Overall width
- 2-3/4 in
- Overall height
- 3-13/16 in
- Installation
- Shower arm and flange sold separately; Wall-mount
- Finishes
- Polished Chrome
Warranty and validity
- Warranty
- Not stated in the maker’s catalogue. Ask us before ordering and we will confirm it with the brand.
How to use it
- An overhead (rain) shower is fixed to the wall or ceiling with an arm; a hand shower connects to a hose and a holder or a diverter outlet.
- Large rain showers need more water to feel full; in a home fed by an overhead tank, a smaller head or a pressure pump gives a better spray.
- Check that the shower’s connection matches the arm, hose or diverter it will fit to.
Installation
- Mark the arm or holder height before tiling, so the outlet comes out where the shower should sit.
- Seal the threaded joint with PTFE tape and tighten by hand; overtightening damages the head’s connection.
- Run water through the line before fitting the head, so debris does not block the nozzles.
Care and maintenance
- Rub the rubber nozzles with a finger every few weeks to clear scale; most modern shower heads are made for this.
- Clean the finish with mild soap and a soft cloth. Acid cleaners and scouring powders damage chrome and coloured finishes.
- In very hard water, soak a removable head in a mild vinegar solution only if the maker allows it for that finish.
Buying tips
- Bigger is not always better: a large head on low pressure gives a weak spray.
- Multi-flow hand showers let you switch between spray patterns; check how many flows the product lists.
- Buy the arm, hose or holder of the same finish, so the set matches.
Maker and compliance details
- Manufacturer / brand
- Kohler
- Model code
- K-11637IN
Compare with similar products
| Specification | | |||
|---|---|---|---|---|
| Price | ₹959 | ₹999 | ₹900 | ₹875 |
| Brand | Kohler | Kohler | Parryware | Essco |
| Collection | Coralais | Complementary | Comfort | — |
| Product number | K-11637IN | K-72439IN-EC | — | — |
| Type | Single-function showerhead, 9.5 lpm | Single-function showerhead, 7.6 lpm | — | — |
| Category | Showerheads | Showerheads | — | — |
| Overall length | 2-3/4 in | 3-13/16 in | — | — |
| Overall width | 2-3/4 in | 3-13/16 in | — | — |
| Overall height | 3-13/16 in | 3-1/8 in | — | — |
| Installation | Shower arm and flange sold separately; Wall-mount | Wall-mount | — | — |
| Finishes | Polished Chrome | Polished Chrome | — | — |
| Finish | — | — | Chrome | Chrome |
Values as each maker states them. “—” means the maker does not state it.
Frequently asked questions
The maker’s catalogue does not state a warranty for this product. Ask us before ordering and we will confirm it with the brand.
Going by its stated specifications, it suits: Wall-mounted showers.
It will work, but the spray is gentler on low pressure, and more so with a large head. A booster pump helps where pressure is low.
Rub the rubber nozzles with a finger to break off the scale. For stubborn scale, follow the maker’s cleaning advice for that finish.
Product facts are from the maker’s published data; the use, fitting and care advice applies to showers in general. Last updated 9 November 2026.