Shower technical guide
Kohler Katalyst Air Square 38.4 cm single-function rainhead, 22.2 lpm: technical guide
Kohler Katalyst Air Square 38.4 cm single-function rainhead, 22.2 lpm is a shower from Kohler. KOHLER showering products offer luxurious water delivery for any showering environment. The Katalyst Air ultra-thin, contemporary square rainhead perfectly positions water flow for an indulgent, drenching shower experience. Katalyst air-induction technology maximizes every water drop and creates a richer, more intense flow of water that heightens the shower's sensory experience. By infusing two liters of air per minute, Katalyst air-induction technology delivers a powerful, voluptuous spray that clings to the body with larger, fuller water drops creating a warmer shower experience.
- Vibrant Rose Gold, Vibrant Brushed Bronze, Vibrant… finish suits a designer bathroom
- Single-function rainhead
- Full Coverage with Katalyst air-induction technology delivers a drenching spray experience, ideal for rinsing shampoo from hair
Best for
- Wall-mounted showers
- Ceiling-mounted rain showers
Pros
- Vibrant Rose Gold, Vibrant Brushed Bronze, Vibrant… finish suits a designer bathroom
- Single-function rainhead
- Full Coverage with Katalyst air-induction technology delivers a drenching spray experience, ideal for rinsing shampoo from hair
- Optimized sprayface creates a denser uniform spray pattern for consistent coverage and feeling of warmth
- MasterClean sprayface features an easy-to-clean surface that withstands mineral buildup and maximizes spray performance
Cons
- Coloured finishes need gentle, non-abrasive cleaning
Key specifications
As stated by the maker.
- Brand
- Kohler
- Collection
- Katalyst Air
- Product number
- K-9301IN-ZX
- Type
- Square 38.4 cm single-function rainhead, 22.2 lpm
- Category
- Showerheads
- Overall length
- 15-1/8 in
- Overall width
- 2-3/8 in
- Overall height
- 15-1/8 in
- Installation
- G 1/2 (13 mm) inlet connection; Mounts to the wall or ceiling; Requires single-function rainhead shower arm and flange (sold separately)
- Finishes
- Vibrant Rose Gold, Vibrant Brushed Bronze, Vibrant Brushed Rose Gold
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-9301IN-ZX
Compare with similar products
| Specification | | |||
|---|---|---|---|---|
| Price | from ₹1,06,719 | from ₹75,999 | from ₹87,000 | from ₹9,550 |
| Brand | Kohler | Kohler | Jaquar | Parryware |
| Collection | Katalyst Air | ModernLife Edge | — | Hand Shower Single Flow |
| Product number | K-9301IN-ZX | K-9301IN-CL | — | — |
| Type | Square 38.4 cm single-function rainhead, 22.2 lpm | Square 38.4 cm single-function rainhead, 22.2 lpm | — | — |
| Category | Showerheads | Showerheads | — | — |
| Overall length | 15-1/8 in | 15-1/8 in | — | — |
| Overall width | 2-3/8 in | 2-3/8 in | — | — |
| Overall height | 15-1/8 in | 15-1/8 in | — | — |
| Installation | G 1/2 (13 mm) inlet connection; Mounts to the wall or ceiling; Requires single-function rainhead shower arm and flange (sold separately) | G 1/2 (13 mm) inlet connection; Mounts to the wall or ceiling; Requires single-function rainhead shower arm and flange (sold separately) | — | — |
| Finishes | Vibrant Rose Gold, Vibrant Brushed Bronze, Vibrant Brushed Rose Gold | Polished Chrome, Vibrant French Gold, Matte Black | — | — |
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, Ceiling-mounted rain 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.