Grohe Grohtherm Thermostatic Valve Shower System

On Sale:
$941.50 $1,345.00
(30% Off)
On Sale:
$941.50 $1,345.00
(30% Off)

Select Finish*

On Sale:
$941.50 $1,345.00
(30% Off)
Usually Ships in 1 to 2 Weeks
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Product overview


Product Specs:

Product Specs

  • Style: Modern/Contemporary
  • Finish: Chrome, Brushed Nickel
  • Handshower Included: Yes
  • Valve Included: Yes
  • Slidebar Included: Yes
  • Rough-in Included: Yes
  • Diverter Included: Yes
  • Trim Included: Yes
  • Showerhead Function: Single Function
  • Showerhead Width: 8 1/4 in
  • Number of Handles / Knobs: 2 Handle / Lever
  • Shower Fixtures Material: Metal
  • Handles Material: Metal
  • Handshower Length: 6 1/8 in
  • Handshower Width: 4 in
  • Handshower Hose Length: 59 in
  • Shower Arm Length: 11 1/4 in
  • Easy-Cleaning Nozzle: Yes
  • Valve Type: Thermostatic Valve
  • Water Flow Rate: 1.75 GPM
  • WaterSense Certified: Yes
  • Made In: Europe
  • Warranty: Limited Lifetime Parts Warranty


Showerhead: W 8 1/4" x L 8 1/4" x D 2 1/2" Handshower: L 6 1/8" x W 4" x D 2 3/4" Shower Arm: L 11 1/4" x W 2 5/8" x H 2 5/8" Slide Bar: L 24 3/8" Trim: W 6 1/4" x H 6 1/4" x D 1 3/4"

About Grohe 347450 Grohtherm Thermostatic Valve Shower System

Create a shower that offers both design excellence and superior performance with the Grohe Grohtherm round thermostatic shower set. Defined by soft, circular shapes, the dual function thermostatic control makes it easy to switch from shower head to hand shower, while Grohe TurboStat maintains desired temperature for duration of shower. Shower set includes everything needed to update the style and enhance the enjoyment of every shower experience.

Features for Thermostatic Trim (24133)

  • Grohe TurboStat compact cartridge with wax thermo element
  • Grohe StarLight chrome finish
  • Wall trim plate with Grohe QuickFix (Concealing mounting screws)
  • Metal trim angle adjustable up to 6°
  • Thermostatic temperature control with SafeStop at 100° F/38°C
  • Grohe SafeStop Plus temperature limiter at 115° F/46° C
  • Grohe AquaDimmer, integrated shut off/diverter valve

Features for Rough-in Box (35601)

  • 3 outlets 1/2" Female NPT
  • 2 intlets 1/2" Female NPT
  • Pre-mounted flushing plug
  • Stable built-in box and plaster guard
  • Mounting options for solid walls and dry walls
  • Trim not included

Features for Showerhead (26409)

  • Rain spray pattern (1 spray-rain)
  • Diameter 8 1/4"
  • Rotating ball joint ± 15°
  • 1/2" Connection thread
  • Grohe EcoJoy 1.75 GPM (6.6 l/min) flow limiter
  • Grohe DreamSpray perfect spray pattern
  • Grohe StarLight chrome finish
  • SpeedClean anti-lime system
  • Inner WaterGuide for a longer life
  • Suitable for instantaneous heater
  • Min. recommended pressure: 15 psi (1.0 bar)

Features for Shower Arm (28577)

  • 1/2" (13 mm) NPT Male Threads
  • Can be used with all Rainshower shower heads except Rainshower Jumbo (28783)
  • Grohe StarLight chrome finish

Features for Handshower (26046)

  • Two Adjustable Spray Patterns: GROHE Rain², Rain
  • Grohe EcoJoy 2.0 GPM flow limiter
  • Grohe DreamSpray perfect spray pattern
  • Grohe StarLight chrome finish
  • Grohe CoolTouch
  • SpeedClean anti-lime system
  • Inner WaterGuide for a longer life
  • Universal mounting system (fits all standard shower hoses)
  • Min. recommended pressure: 15 psi
  • Max Flow Rate: 2.0 GPM (7.6 l/min)

Features for Shower Bar (27521)

  • With wall brackets, glider and swivel hand shower holder
  • Grohe StarLight chrome finish

Features for Shower Hose (27521)

  • Metal construction
  • 59" Hose
  • Blister pack
  • Strengthened model
  • Tensile strength 500 N
  • Pressure resistance: up to 16 bar
  • Heat resistance 165°F
  • AntiFold bend proof
  • Universal connection G 1/2" x 1/2"
  • Rotation cone for Twist-free function
  • Silicone strip prevents hand shower from turning while in body spray position
  • Grohe StarLight chrome finish

Features for Wall Union (28627)

  • 1/2" NPT Female Threads
  • Grohe StarLight chrome finish with matte chrome cap


  • Energy Policy Act of 1992
  • ASME A112.18.1/CSA B125.1
  • ICC/ANSI A117.1
  • EPA WaterSense
  • CalGreen
  • cUPC certified
  • CEC certified
  • Low lead compliant

Key Features & Innovations



Grohe TurboStat technology delivers water at your desired temperature within a fraction of a second and keeps it constant for the duration of your shower. Grohtherm thermostats are equipped with the most advanced and precision-made cartridges in the industry. By increasing the sensitivity of the thermo-element, our thermostats react to changes in water pressure twice as fast as before.


SafeStop Plus

Great for homes with children, this safety feature is set at 38°C, preventing you from turning up the water temperature too high. If desired, higher temperatures can be selected by pushing the button. Optional for extra safety: the easy-to-fit Grohe SafeStop Plus limiter ensures that the temperature does not exceed 43°C.


GROHE EcoJoy provides all the comfort you would expect of a GROHE shower while reducing your water consumption by up to 40%. This water-saving technology not only has a positive environmental impact, but will help to reduce your household bill, too.


The GROHE DreamSpray technology turns your daily shower into a luxuriously relaxing experience. The advanced engineering of the shower head ensures a balanced flow of water from all nozzles, whatever spray pattern you choose.

Speed Clean

Limescale is a no longer an issue with our SpeedClean nozzles: thanks to the integrated anti-lime system, you will find the nozzles of your GROHE shower head super easy to clean. To remove any limescale residue from the flexible silicone nozzles, simply wipe them off with your hand.

Inner WaterGuide

A strong insulation of the water guide inside the shower prevents its surface from heating up, so it will never be too hot for you to touch. At the same time, this serves to protect the finish of your Grohe shower, further enhancing its great durability.

Rain Spray



cUPC listed

Low Lead


TwistFree Shower Hose

TwistFree shower hoses are inspired by everyday experience: ever had to struggle with a twisted shower hose, TwistFree keeps your shower hose flexible and in shape, saving you that trouble.

This product has the following variations:

SKU Description Price
34745000 With Finish: StarLight Chrome $941.50
34745EN0 With Finish: Brushed Nickel $1,227.10

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