---
product_id: 349774920
title: "TSV Hot Water Standby Adapter"
brand: "showerstart"
price: "HK$420"
currency: HKD
in_stock: true
reviews_count: 5
category: "Shower Start"
url: https://www.desertcart.hk/products/349774920-tsv-hot-water-standby-adapter
store_origin: HK
region: Hong Kong
---

# Reduces wait time for hot water Saves gallons of hot water Easy universal installation TSV Hot Water Standby Adapter

**Brand:** showerstart
**Price:** HK$420
**Availability:** ✅ In Stock

## Summary

> 🚿 Upgrade your shower game—save water, save time, stay stylish!

## Quick Answers

- **What is this?** TSV Hot Water Standby Adapter by showerstart
- **How much does it cost?** HK$420 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/349774920-tsv-hot-water-standby-adapter)

## 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

- • **Built to Last:** Durable brass handle with a 3-year warranty for peace of mind.
- • **Effortless Control:** Pull tab reengages full flow—no fumbling, just comfort.
- • **Sleek Chrome Finish:** Polished elegance that complements any modern bathroom.
- • **Eco-Smart Water Saver:** Slash your water waste without sacrificing shower pressure.
- • **Universal Compatibility:** Fits all standard 1/2” NPT shower heads and arms effortlessly.

## Overview

The TSV Hot Water Standby Adapter is a chrome-polished, easy-to-install valve that temporarily reduces water flow while waiting for hot water, saving gallons without compromising shower pressure. Compatible with virtually all standard shower heads (1/2” NPT fittings), it features a durable brass handle and comes with a 3-year warranty, making your daily routine more eco-friendly and convenient.

## 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.

Review: Works as advertised. - This is a great, low-lift way of saving water. I'm honestly surprised there isn't a competitor making this product, too, after all of these years; it must be patented. We had the original version at our previous house. In that one, the cord broke after a few months (not too much of a problem, just an annoyance) and the little flipper stopped being effective after a couple of years. This version has a cord that seems sturdier, and time will tell how long the product lasts. But, even if it's just a few years, it will have paid for itself a few times over in water savings, if our previous experience is any indication.
Review: I loved the older versions of this product, but they cheaped way way out - I had one of the original ShowerStart TSVs back in 2017. It was a metal component, well made, and still works great. I bought some of the newer ones, thinking they'd be equivalent quality. They are not. They have all either failed within a year of installing, or failed IMMEDIATELY upon installing. Leaks out the back, threads just stripping and dropping a showerhead off, cracks appearing at the mold seams. The product is still a great idea, they just got too cheap with the manufacturing. Go back to metal construction, and I'll buy another

## Features

- HOW IT WORKS: 1- Turn on shower to hot, cold water purges.
- 2- Walk away. Flow will reduce to trickle once hot water arrives.
- 3- When ready, return to your shower and pull tab to reengage full flow.
- Compatible with virtually all shower heads and shower arms (1/2” NPT fittings) – Chrome polish finish – 3 year warranty
- n Freedom To Mulask While Waiting For Hot Water To Arrive.Stops Empty Showers From Running On And On.Saves Hot Water While Adding Comfort & Convenience To Shower.Helps Hot Water Last Longer - More For Your Family.Keeps Shower Heads High Pressure & Feel - Does not change shower head flow or feel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WZQTWLG |
| Best Sellers Rank | #210,147 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #432 in Fixed Showerheads |
| Brand | ShowerStart |
| Brand Name | ShowerStart |
| Customer Reviews | 3.8 out of 5 stars 280 Reviews |
| Exterior Finish | Chrome |
| Exterior finish | Chrome |
| Global Trade Identification Number | 00850002582000 |
| Included Components | valve, pull cord |
| Inlet Connection Type | National Pipe Tapered |
| Inlet connection type | National Pipe Tapered |
| Item Dimensions | 7 x 5.5 centimeters |
| Item Type Name | Hot Water Saving Shower Upgrade Valve |
| Item dimensions L x W x H | 7 x 5.5 centimeters |
| Manufacturer | Evolve Technologies |
| Manufacturer Part Number | EV1003-CP-SB |
| Material | Chrome |
| Material Type | Chrome |
| Model Number | EV1003-CP-SB |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Outlet Connection Type | NPT |
| Outlet connection type | NPT |
| Specification Met | UPC, WaterSense |
| UPC | 850002582000 |
| Unit Count | 1 Count |
| Valve Type | Thermostatic Valve |

## Product Details

- **Brand:** ShowerStart
- **Colour:** Chrome Polish
- **Material:** Chrome
- **Finish type:** Polished
- **Number of handles:** 1

## Images

![TSV Hot Water Standby Adapter - Image 1](https://m.media-amazon.com/images/I/71sjaOpuNAL.jpg)
![TSV Hot Water Standby Adapter - Image 2](https://m.media-amazon.com/images/I/81qu4+pDBcL.jpg)
![TSV Hot Water Standby Adapter - Image 3](https://m.media-amazon.com/images/I/81ROKbRyBiL.jpg)
![TSV Hot Water Standby Adapter - Image 4](https://m.media-amazon.com/images/I/81agn5LVuBL.jpg)
![TSV Hot Water Standby Adapter - Image 5](https://m.media-amazon.com/images/I/810Jbjbjd2L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as advertised.
*by A***R on 15 December 2020*

This is a great, low-lift way of saving water. I'm honestly surprised there isn't a competitor making this product, too, after all of these years; it must be patented. We had the original version at our previous house. In that one, the cord broke after a few months (not too much of a problem, just an annoyance) and the little flipper stopped being effective after a couple of years. This version has a cord that seems sturdier, and time will tell how long the product lasts. But, even if it's just a few years, it will have paid for itself a few times over in water savings, if our previous experience is any indication.

### ⭐ I loved the older versions of this product, but they cheaped way way out
*by P***X on 3 February 2023*

I had one of the original ShowerStart TSVs back in 2017. It was a metal component, well made, and still works great. I bought some of the newer ones, thinking they'd be equivalent quality. They are not. They have all either failed within a year of installing, or failed IMMEDIATELY upon installing. Leaks out the back, threads just stripping and dropping a showerhead off, cracks appearing at the mold seams. The product is still a great idea, they just got too cheap with the manufacturing. Go back to metal construction, and I'll buy another

### ⭐⭐⭐⭐ Love these for kids and adults that let the shower hot water run long after the water is hot!!
*by C***E on 12 June 2025*

Love these for kids and adults that let the shower hot water run long after the water is hot!! The plastic threads on these are fragile, so that's the only thing I would say is a detriment to this product. Be careful when putting on the pipe and attaching the shower head, or whatever other outlet

## 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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**Shop now:** [https://www.desertcart.hk/products/349774920-tsv-hot-water-standby-adapter](https://www.desertcart.hk/products/349774920-tsv-hot-water-standby-adapter)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-05-30*