Model # K-45905-CP

Internet #204348180

KOHLER HydroRail-S Bath/Shower Column in Polished Chrome


HydroRail-S Bath/Shower Column in Polished Chrome

$29723 /each

Choose Your Options

Polished Chrome
  • Oil-Rubbed Bronze
  • Polished Chrome
  • Vibrant Brushed Bronze
  • Vibrant Brushed Nickel
  • Vibrant Polished Nickel
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Frequently Bought Together

Product Overview

HydroRail-S allows you to easily upgrade a standard fixed showerhead to a spa-like showering experience with luxurious showerhead and hand shower functionality. It's designed to accommodate a wide array of bath/shower configurations without altering in-wall plumbing, making it suitable for both remodels and new construction. This bath/shower column converts your single-outlet showerhead into a two-outlet custom showering experience, and has a slide bar bracket for easy height and angle adjustments to your hand shower. For smooth toggling between hand shower and showerhead functions, this column features a diverter conveniently located at the base of the column.

  • Column lets you customize your shower with a showerhead and hand shower
  • For use in bath and shower installations
  • Patent-pending technology allows for an easy bath/shower installation
  • Slide bar bracket allows you to adjust height and angle of hand shower
  • Includes an adapter that will fit with most installations but may require K-1194630, K-1187917, or K-1194302, refer to the specification sheet for more information
  • Diverter at the base of the column makes for easy toggling between hand shower and showerhead

    Kohler HydroRail Before and After

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Color Family
Polished Chrome
Escutcheon Included
Mount Type
Wall Mount
Plumbing Part Type
Shower Arm
Shower Arm Style
Shower head Included

Warranty / Certifications

Manufacturer Warranty
Kohler Lifetime Limited Warranty

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Customer Questions & Answers

Do you have to drill holes in the tile?

The video only shows how to attach the column/rail where your showerhead outlet pipe is, but it looks like it is attached to the wall lower down as well. Do you have drill holes in the wall or wall tiles for that?
Asked by: dutchwoman
Both escutcheons must be bolted to the wall studs or backing using the provided molly bolts in order for the rail to remain stable and provide a safe handrail for support. You might get by with using a quality waterproof epoxy adhesive for the mounting escutcheons but I would NOT recommend.
Answered by: capnobbby
Date published: 2016-08-27

Can you use any shower head for this hydrorail or are there specific Kohler models that must be used?

Asked by: Brittany
It fits most Kohler installations, but may need an adapter including K-1194630, K-1187917, or K-1194302
Answered by: CommunityAnswer
Date published: 2016-08-31
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Customer Reviews

HydroRail-S Bath/Shower Column in Polished Chrome is rated 4.9 out of 5 by 10.
Rated 5 out of 5 by from Love the spa like look of the system. We have a fixed shower head and a separate hand shower. Love the spa like look of the system. We have a fixed shower head and a separate hand shower.
Date published: 2017-05-09
Rated 4 out of 5 by from Great for new installation or retrofit! I am planning to remodel my shower (removing old fiberglass stall and installing new pan, sheetrock, and tile. This HydroRail-H Shower Column will be a fantastic finish to the shower and I can use my current hand shower and head. The Chrome finished unit will match my Kohler Single handle faucet in my lavatory and my towel racks which are Chrome also. Be sure to READ the instructions, taking care to read those sections that apply to Retrofit OR new construction. The water supply goes to the upper escutcheon only and supplies the shower head and The outlet for the hand-shower at the bottom. The instructions could me a bit more explicit but if you read carefully, installation should not be a problem, even for the Do It Your-Selfer. The quality of the unit is high end and the design is simple and attractive and will be easy to keep clean. I think the price is a little high, hence the 4 star rating
Date published: 2016-08-26
Rated 5 out of 5 by from Exactly what i wanted. Exactly what i wanted.
Date published: 2017-02-14
Rated 5 out of 5 by from Very useful I am disabled and can stand for short periods of time so with the Hydrorail-s Bath/Shower Column in Brushed Nickel I can start my shower standing than switch to the lower shower head and sit in my shower chair to finish. The column is very sturdy and heavy for a tube. I had expected it to be a light piece of copper tubing covered in a nickel finish but this column actually feels like a pipe coated with the finish. I feel that it is strong enough that if I were to start to fall in the bath I could grab on and it would support me.
Date published: 2016-04-12
Rated 5 out of 5 by from Like showering in a high end hotel My brother put one of these in his shower when he had kids and I instantly fell in love with it. I installed one in my bathroom and now I have one in the hall bathroom as well. Now the shower head can be at the perfect level for everyone one in the family. This has the added benefit of being able to attach a hose end shower head to the bottom of the column and a regular shower head on the top. Now rinsing my two year old's hair and washing the dog are much easier. Installation is fairly straight forward if you have done basic plumbing but even if you haven't the instructions are clear and easy ti follow. Everything you need for installation is in the box with the exception of some thread tape. Just remove the old shower head elbow and follow the instructions.
Date published: 2016-04-26
Rated 5 out of 5 by from Great for Kids bathroom I got this hydrorail to make it easier for my kids to take their showers, without parental help. This rail has a normal shower head up high, but allows you to also have a hand held shower head that can be raised and lowered as desired. This allows users of different heights to adjust the shower head to a desirable height for optimal use. It also has a lever that allows to switch from the overhead sprayer to the handheld sprayer. The installation is a fairly straight forward installation as well.
Date published: 2016-03-21
Rated 5 out of 5 by from Near instant eloquence upgrade for the shower, proving two heads This is a conversion unit from a single high mount shower head to a dual fixed head and a hand held unit. It installs fairly easily, you remove your old shower head and arm, connect the hydrorail unit in its place, secure the lower mount to the shower wall, and connect a top shower head and a hand held shower head to the lower unit. All mounting hardware is included, no in wall plumbing modifications are necessary to use this - a big plus! You do need to supply both the top shower head and the handheld unit complete with connecting hose. The unit is adjustable so you can adjust the location of the top fixed head. There is a selector knob to control water to the top or hand held head, and you can mix the two if you like. I used my unit to convert an outdoor shower we have down at our shore house to add the hand held unit. The hand held head is great for washing the sand from your legs and feet! This unit looks great and adds instant eloquence and functionality to any shower.
Date published: 2016-03-25
Rated 5 out of 5 by from Nice shower accessory! This item turn our regular shower into a spa! The hand shower can be easily adjust for height, and while not noted in the description of this item, by using the diverter valve, you can have water flow from both the hand shower and the fixed shower head, creating a flood of water! The finish is beautiful, and maters our other brushed nickel fixture well. Installation is simple, pliers, a level, drill and screwdriver are all that's needed.
Date published: 2015-12-06
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