--- product_id: 55478026 title: "GROHE Universal Rough-In Box (3 Outlets 1/2\", 2 Inlets Below 1/2\", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000" brand: "grohe" price: "1133 kr" currency: DKK in_stock: true reviews_count: 13 category: "Grohe" url: https://www.desertcart.dk/products/55478026-grohe-universal-rough-in-box-3-outlets-1-2-2 store_origin: DK region: Denmark --- # Installation depth 75-105 mm 3 outlets 1/2 inch Pre-mounted flushing plug GROHE Universal Rough-In Box (3 Outlets 1/2", 2 Inlets Below 1/2", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000 **Brand:** grohe **Price:** 1133 kr **Availability:** ✅ In Stock ## Summary > 🚿 Elevate your shower game with GROHE’s universal rough-in box—where precision meets effortless installation! ## Quick Answers - **What is this?** GROHE Universal Rough-In Box (3 Outlets 1/2", 2 Inlets Below 1/2", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000 by grohe - **How much does it cost?** 1133 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/55478026-grohe-universal-rough-in-box-3-outlets-1-2-2) ## Best For - grohe enthusiasts ## Why This Product - Trusted grohe brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Triple Outlet Efficiency:** Three 1/2 inch outlets optimize water flow management for complex shower setups. - • **Future-Proof Your Bathroom:** Compatible with GROHE’s advanced trims and mixers—upgrade your space with confidence. - • **Built-In Protection & Stability:** Pre-mounted flushing plug and protective cap safeguard your system during installation and beyond. - • **Effortless Installation Flexibility:** Adjustable 75-105 mm depth ensures seamless fit in diverse wall structures—no guesswork needed. - • **Precision-Engineered German Quality:** Crafted with premium DR brass and ABS for unmatched durability and reliability. ## Overview The GROHE Universal Rough-In Box (model 35600000) is a robust plumbing fixture designed for professional-grade shower installations. Featuring three 1/2 inch outlets, an adjustable installation depth of 75-105 mm, and a pre-mounted flushing plug, it ensures a stable, leak-proof foundation. Made in Germany with high-quality DR brass and ABS materials, this unit supports easy alignment and integration with GROHE’s premium trim sets, making it the go-to choice for millennial professionals seeking reliability and sleek bathroom upgrades. ## Description From the manufacturer Discover GROHE Our Foundations Quality From the first design sketch to the final product to after-sales services: Our customers can rely on our Made in Germany sense of perfectionism. Technology We constantly drive innovation to enrich your everyday water experience, delivering smart solutions on the path of the digitization of water. Design Our highly awarded design recipe is simple: Merging the contemporary & the timeless into products that feel like they were designed just for you. Sustainability Water is our passion and we strive to protect all of our planet's resources for future generations. Build Your Dream Bathroom & Kitchen with GROHE GROHE's combination of design excellence, advanced technology, quality materials, and a commitment to sustainability makes it a preferred choice for many when it comes to bathroom and kitchen fixtures. Shower Systems Create the shower of your dreams with GROHE's premium systems. Shower Systems Create the shower of your dreams with GROHE's premium systems. Basin Mixers Save water and energy with GROHE Basin Mixers. Basin Mixers Save water and energy with GROHE Basin Mixers. Toilets, Flushing Systems & Flush Plates Design your perfect toilet with GROHE Flushing Systems. Toilets, Flushing Systems & Flush Plates Design your perfect toilet with GROHE Flushing Systems. Kitchen Mixers Upgrade your kitchen with GROHE Kitchen Mixers. Kitchen Mixers Upgrade your kitchen with GROHE Kitchen Mixers. Water Systems Get filtered or kettle-hot water straight from your kitchen tap. Water Systems Get filtered or kettle-hot water straight from your kitchen tap. Renovate your home with GROHE products Start Cube Robe Hook Start Pull Out Mixer Tap Solido Euro Ceramic WC Start Tap with Waste Set Get Professional Blue Pure StartCurve K400 Quartz Composite GROHE Fizz Advanced GROHE CO2 425g Bottle SmartControl 310 Duo Thermostatic Shower Set Thermostatic ShowerSystem Hand Shower Multifunctional Colander GROHE Shaping the Future of Water Review: Great price - Awesome Quality and great price Review: Really easy to fit - Bought to replace an existing mixer tap that was in the stud wall behind my shower. Wanted something easy to plumb in and fix properly without messing with levels etc. Was installed in a few hours (once cut out the old broken unit). Existing pipework was easily adapted using additional speedfit connectors. Instructions were clear and very easy to follow. The only thing I would say, and no fault of the manufacturer: if you are installing a square face plate then any "off" lines will be *very very* obvious. So affix the facecover and faceplate then work out your alignment back from that. You are limited to 6 degree float by the internals when you put them in... So easy to fit! Had it done in a few hours (this is for replacing existing unit in a stud wall...from the shower side) 1. Affix a backboard to screw the back to 2. Plumb unit in and pressure test 3. Affix unit to backboard, then use spirit level to get fore/aft tilt and left/right. Pack out behind screws with washers and tighten it all up. 4. Fit the supporting faceplate and clips to lock in place at right depth 5. Fit your wall board (i used a sheet of hardibacker) to the right depth for your tiles + adhesive depth 5b: pressure test again (Im a diyer so paranoid about my plumbing 6. Seal it all in with sanitary sealant 7. Apply thin layer of tile adhesive around the unit cylinder then fix the latex sheath to get a really good seal. 8. Tile, grout and seal etc. or whatever you want to put on top. 9. Install your chosen control unit (I got the square thermostatic mixer... bad choice as my tiling isnt super square :D) Id buy this again if was doing another shower as was so easy to get the levels right... I had it done and ## Features - 3 outlets 1/2 inch. - Installation depth 75-105 mm. - Pretensioning stopper preassembled. - Stable installation box and protective cap. - - - ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071FC4TST | | Assembly Instructions Description | Assembly required. Instructions included. | | Brand | GROHE | | Colour | Blue | | Customer Reviews | 4.6 4.6 out of 5 stars (1,260) | | Door Style | Pivot, Hinged | | Finish | Polished | | Global Trade Identification Number | 04005176413469 | | Handle Type | Push | | Included Components | Instruction Manual | | Installation Type | Screw-In | | Is Assembly Required? | Yes | | Is Framed | No | | Item Dimensions D x W x H | 17D x 18.5W x 18.5H centimetres | | Item Weight | 1 Kilograms | | Manufacturer | GROHE | | Material | Acrylonitrile Butadiene Styrene (ABS), Brass | | Model Number | 35600000 | | Number Of Panels | 1 | | Number of Doors | 2 | | Part Number | 35600000 | | Shape | Rectangular | | Style | Single | | Unit Count | 1.0 count | ## Product Details - **Door style:** Pivot, Hinged - **Finish type:** Polished - **Material:** Acrylonitrile Butadiene Styrene (ABS), Brass - **Product dimensions:** 17D x 18.5W x 18.5H centimetres - **Style:** Single ## Images ![GROHE Universal Rough-In Box (3 Outlets 1/2", 2 Inlets Below 1/2", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000 - Image 1](https://m.media-amazon.com/images/I/61DgG13xUoL.jpg) ![GROHE Universal Rough-In Box (3 Outlets 1/2", 2 Inlets Below 1/2", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000 - Image 2](https://m.media-amazon.com/images/I/91ixwzbc1SL.jpg) ![GROHE Universal Rough-In Box (3 Outlets 1/2", 2 Inlets Below 1/2", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000 - Image 3](https://m.media-amazon.com/images/I/51UUcxlfVgL.jpg) ![GROHE Universal Rough-In Box (3 Outlets 1/2", 2 Inlets Below 1/2", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000 - Image 4](https://m.media-amazon.com/images/I/712Mz-vYmGL.jpg) ![GROHE Universal Rough-In Box (3 Outlets 1/2", 2 Inlets Below 1/2", Installation Depth 75-105 mm, Connection Unit in DR Brass, Pre-Mounted Flushing Plug, No Trim Set Included), 35600000 - Image 5](https://m.media-amazon.com/images/I/61EomXdnGUL.jpg) ## Questions & Answers **Q: Are these thermostatic or straight mixers- sick of replacing thermostat cartridges in an area with very hard water....** A: This is thermostatic but not great in controlling the temperature. There is a point very sensitive where the water gets straight too hot or lukewarm when turned back so very difficult to regulate if your desired temperature is around that spot . **Q: is it easy to replace a mixer at a later date. I hope this is one of those that once installed the top bit (the mixer) can easy be swapped it required** A: Yes mixer can easily be replaced **Q: i have grohe 19382000 eurosmart cosmopolitan single-lever bath mixer trim set. will this smart box compatible as concealed part?** A: Yes. My pump is behind tiles. Only the switch gear - lever for overhead and separate shower head is visible. This bread and butter for a plumber **Q: Will this work with a salamander water pump. Plumber has stated it must be a low pressure unit due to the pump being used** A: I have this unit working with a 3bar pump no problems I believe the max bar is even higher than this ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great price *by D***N on 12 December 2024* Awesome Quality and great price ### ⭐⭐⭐⭐⭐ Really easy to fit *by D***E on 4 February 2022* Bought to replace an existing mixer tap that was in the stud wall behind my shower. Wanted something easy to plumb in and fix properly without messing with levels etc. Was installed in a few hours (once cut out the old broken unit). Existing pipework was easily adapted using additional speedfit connectors. Instructions were clear and very easy to follow. The only thing I would say, and no fault of the manufacturer: if you are installing a square face plate then any "off" lines will be *very very* obvious. So affix the facecover and faceplate then work out your alignment back from that. You are limited to 6 degree float by the internals when you put them in... So easy to fit! Had it done in a few hours (this is for replacing existing unit in a stud wall...from the shower side) 1. Affix a backboard to screw the back to 2. Plumb unit in and pressure test 3. Affix unit to backboard, then use spirit level to get fore/aft tilt and left/right. Pack out behind screws with washers and tighten it all up. 4. Fit the supporting faceplate and clips to lock in place at right depth 5. Fit your wall board (i used a sheet of hardibacker) to the right depth for your tiles + adhesive depth 5b: pressure test again (Im a diyer so paranoid about my plumbing 6. Seal it all in with sanitary sealant 7. Apply thin layer of tile adhesive around the unit cylinder then fix the latex sheath to get a really good seal. 8. Tile, grout and seal etc. or whatever you want to put on top. 9. Install your chosen control unit (I got the square thermostatic mixer... bad choice as my tiling isnt super square :D) Id buy this again if was doing another shower as was so easy to get the levels right... I had it done and ### ⭐⭐⭐⭐ Does the job but not easy to set up via the instruction pictures provided *by P***J on 1 April 2025* Very happy with this controller and it looks great and works very well but it’s a bit fiddly to assemble and set up and you need a thermometer to set the temperature at 38c. The instructions in the box are not easy to follow as they are all pictures with very little text so I used YouTube to find a video which made it much clearer. Assembling the two control knobs is very fiddly too. ## Frequently Bought Together - GROHE Rapido Smartbox - shower systems - universal concealed installation unit - DN 15-35600000 - Grohe 28672000 Relexa Shower Wall Union, 0.5-Inch Threaded Connection, Starlight Chrome - GROHE 35601000 Rapido Smartbox Universal Rough-In Box, Starlight Chrome --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/55478026-grohe-universal-rough-in-box-3-outlets-1-2-2](https://www.desertcart.dk/products/55478026-grohe-universal-rough-in-box-3-outlets-1-2-2) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-23*