---
product_id: 169241797
title: "Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack"
brand: "showerstart"
price: "246 zł"
currency: PLN
in_stock: true
reviews_count: 8
url: https://www.desertcart.pl/products/169241797-evolve-ev1003cp-sb-showerstart-thermostatic-shut-off-valve-in-chrome
store_origin: PL
region: Poland
---

# Energy-saving thermostatic control Saves gallons of hot water Universal .5-inch NPT fittings Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack

**Brand:** showerstart
**Price:** 246 zł
**Availability:** ✅ In Stock

## Summary

> 🚿 Save water, save energy, and never compromise your shower experience!

## Quick Answers

- **What is this?** Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack by showerstart
- **How much does it cost?** 246 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/169241797-evolve-ev1003cp-sb-showerstart-thermostatic-shut-off-valve-in-chrome)

## Best For

- showerstart enthusiasts

## Why This Product

- Trusted showerstart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Convenience:** Pull the cord to start your shower only when ready—save water while you prep, multitasking like a pro.
- • **Universal Compatibility:** Fits all standard shower heads with easy .5-inch NPT connections—no extra adapters needed.
- • **Certified Quality & Durability:** UPC and WaterSense certified with a sleek chrome finish and backed by a 3-year warranty.
- • **High-Pressure Shower Experience:** Maintains your favorite strong water flow—no low-flow compromises here.
- • **Effortless Water & Energy Savings:** Automatically pauses water flow until perfect temperature, cutting waste without changing your routine.

## Overview

The Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve is a chrome-finished, wall-mounted valve designed to save water and energy by automatically pausing water flow until the shower reaches the ideal temperature. Compatible with all standard shower heads via .5-inch NPT fittings, it maintains high-pressure flow without sacrificing comfort. Certified by the Uniform Plumbing Code and WaterSense, it offers a modern, durable solution with easy installation and a 3-year warranty.

## Description

Hot Water Standby and High-Pressure Sprays! Tired of waiting for the hot water to be ready? Now it waits for you and adds convenience and freedom to your get-ready routine. Brush your teeth, use your toilet, make your bed, or pick an outfit without wasting hot water while you're away. When you’re ready to step in and begin showering, simply pull the cord to resume the high-pressure spray and enjoy. Enjoy getting luxuriously clean while getting lower utility bills. Our ShowerStart technology helps you save energy by cleverly and conveniently saving the hot water when it arrives. The Thermostatic Shut-off Valve (or TSV) triggers and stops hot water from running on and on by auto-pausing the flow when the temperature is just right. Enjoy more, use less. Save water and energy used before showering begins. You never have to keep checking on the temperature while waiting. Simply step in when ready and pull on the foot-long lanyard to start your regular flow. Our energy-saving valve works with standard fixtures so you don't have to buy any special adaptors or fittings. Its .5-inch NPT fittings make for easy connection to any standard head fixture or extension. The Evolve Thermostatic Shut-off Valve meets or exceeds standards set by WaterSense and the Uniform Plumbing Code. They are durable, stylish energy savers that don't compromise on your showering experience.

## Features

- ENJOY MORE, USE LESS: With our Thermostatic Shut-off Valve you'll enjoy a great feeling high-pressure water flow for bathing and enjoy utility savings with no sacrifices or behavior changes required.
- HOT WATER STANDBY: Some hot water is always wasted while you're waiting for the temperature to get right. Our bathroom fixture auto-pauses the flow when hot water arrives. Save water and energy used before showering even begins.
- NOT LOW FLOW: Keep the high flow you love! Our automatic control valve doesn't change the running water's feel or flow. It simply reduces the flow of water to a trickle until you're ready to step into the stall.
- UNIVERSAL FIT: Our water saving valve fits any bathroom fixture head that you already have installed at home. The .5-inch NPT fittings easily connect to any standard heads or extensions.
- QUALITY BATHROOM ACCESSORY: Our bathroom accessory is compliant with the Uniform Plumbing Code. This water-saving bathroom must-have also comes with a 3-year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Brand | ShowerStart |
| Item dimensions L x W x H | 2.75 x 2.17 inches |
| Exterior Finish | Chrome |
| Inlet Connection Type | National Pipe Tapered |
| Outlet Connection Type | NPT |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Specification Met | UPC, WaterSense |
| Global Trade Identification Number | 00850002582000 |
| Manufacturer | AM Conservation Group |
| UPC | 850002582000 |
| Part Number | EV1003-CP-SB |
| Item Weight | 2.08 ounces |
| Item model number | EV1003-CP-SB |
| Color | Chrome Polish |
| Style | Modern |
| Finish | Chrome Polish |
| Shape | Round |
| Installation Method | Wall Mounted |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Number of Handles | 1 |
| Handle Material | Plastic |
| Mounting Type | Wall Mount |
| Special Features | Adds Comfort & Convenience To Get-Ready Routine, Easy Installation, Not Low Flow, Saves Gallons Of Hot Water Every Time You Shower, Works With All Standard Shower Heads |
| Included Components | valve, pull cord |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 3 Year |

## Product Details

- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Brand:** ShowerStart
- **Item dimensions L x W x H:** 2.75 x 2.17 inches
- **Exterior Finish:** Chrome
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** NPT
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.5 Inches
- **Specification Met:** UPC, WaterSense
- **Global Trade Identification Number:** 00850002582000

## Images

![Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack - Image 1](https://m.media-amazon.com/images/I/71sjaOpuNAL.jpg)
![Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack - Image 2](https://m.media-amazon.com/images/I/81qu4+pDBcL.jpg)
![Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack - Image 3](https://m.media-amazon.com/images/I/81ROKbRyBiL.jpg)
![Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack - Image 4](https://m.media-amazon.com/images/I/81agn5LVuBL.jpg)
![Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack - Image 5](https://m.media-amazon.com/images/I/810Jbjbjd2L.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great, easy to self install
*by D***E on January 27, 2025*

This works as advertised. Water gets hot then the flow drops to a trickle - water is hot when you actually get in the shower. This is a water and money saver... and reduces damage from turning you bathroom into a sauna.

### ⭐⭐⭐⭐⭐ Get the metal one!
*by R***A on November 3, 2024*

First thing to know: No, these valves do NOT last forever. I tend to have to replace them every 5 or 6 years. It probably depends on the type of water you've got and how much you use them. One of these days, I'll do a deep dive on trying to rehabilitate a dying valve (soak in a descaler like CLR, clean the inlet screen, ...?). In the meantime, it bothers me to waste water and energy by running the hot water past the point where it's reached the shower.I've seen some people's reviews complaining that these valves aren't made well anymore. Perhaps? I see that this Amazon seller (ShowerStart) is offering two models: One ("Chrome Polish") looks like it might be made of plastic, and costs about 20% less than the one that I bought ("Brushed Nickel"), which is definitely mostly metal. That's the version I've always bought, and it lasts years, in our home.In terms of finances -- no, the savings in water/energy probably won't recoup the cost of the valve. I buy it because wasting the water and energy just bothers me too much. But I live in SoCal, where water and energy are often constrained resources.

### ⭐⭐⭐ Promising concept, though cheap materials, and doesn't always work
*by J***Y on December 17, 2024*

I love this idea: You turn on your water and, once it gets hot, this device is supposed to shut off the water, until you pull the cord. If your water can take a while to heat up, and you don't want to stand around constantly checking it, this can not only reduce water usage and costs, but also "notify" you once the water is hot.In practice, I found this to be a bit flaky. It works best when you heat up the water all the way—but that also means you'll need to adjust the temperature back before jumping in. In addition, the device feels like a cheaper material, and I will be curious to see if it ends up springing a leak with constant use. That said, it is pretty noninvasive, and really nice when it does work.Currently, my local utility in Seattle offers is offering a rebate on these which effectively makes them free. For that price, they're well worth the experiment.If you're like me, you will probably fuss over the design of the pull cord. Fortunately, it's a completely detachable element, which isn't obvious in the photos. If you are tall or have a low showerhead, you can just remove it entirely, and pull down on the lever directly. Otherwise, you can easily replace this with any cord of your choosing. I used a chain, but you could get creative here and use e.g., a thin piece of rope with an ornament hanging off the end, or something like that.

## Frequently Bought Together

- Evolve EV1003CP-SB ShowerStart Thermostatic Shut-off Valve in Chrome Finish, Water- and Energy-Saving Valve for Most Bathroom Fixtures, Not Low Flow, Uniform Plumbing Code Certified, 1-Pack
- HOPOPRO 5-Mode High Pressure Shower Head - The Washington Post, NBC News, Today TV Show Recommended - High Flow Fixed Showerheads (4 Inch Chrome)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-23*