---
product_id: 86881421
title: "Plumb Thumbs 15mm & 22mm Radiator Capping Tool - Radiator Drain Down Tool"
brand: "jd brands"
price: "฿1595"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/86881421-plumb-thumbs-15mm-and-22mm-radiator-capping-tool-radiator-drain
store_origin: TH
region: Thailand
---

# Speeds up radiator removal Seals radiator with water inside Dual 15mm & 22mm sizes Plumb Thumbs 15mm & 22mm Radiator Capping Tool - Radiator Drain Down Tool

**Brand:** jd brands
**Price:** ฿1595
**Availability:** ✅ In Stock

## Summary

> 🔧 Cap it, carry it, conquer it — radiator removal made effortless!

## Quick Answers

- **What is this?** Plumb Thumbs 15mm & 22mm Radiator Capping Tool - Radiator Drain Down Tool by jd brands
- **How much does it cost?** ฿1595 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/86881421-plumb-thumbs-15mm-and-22mm-radiator-capping-tool-radiator-drain)

## Best For

- jd brands enthusiasts

## Why This Product

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

## Key Features

- • **Quick Reconnection:** Minimizes system repressuring, saving time on heating system restart.
- • **Hands-Free Handling:** Enables safe two-handed carrying, reducing strain and risk of accidents.
- • **Dual-Sized Precision Fit:** Fits both ½” (15mm) & ¾” (22mm) radiator pipes for universal compatibility.
- • **Mess-Free Radiator Removal:** Caps radiators fully sealed, eliminating spills and protecting your workspace.
- • **Rust Prevention Inside Radiators:** Keeps water sealed inside to prevent drying and internal rusting.

## Overview

The Plumb Thumbs Radiator Capping Tool is a durable, dual-ended plastic tool designed for quick, mess-free radiator removal. Compatible with 15mm and 22mm pipes, it seals radiators with water inside to prevent spills and rust, enabling safe two-handed transport and faster system reconnection. Ideal for professionals seeking efficiency and cleanliness on every job.

## Description

Product Description Plumb Thumbs A top-rated radiator capping tool Radiator removal too many can prove to be a tricky task. It is well known that many of us have experienced dropping water or sludge from a radiator during the removal process onto floor coverings leaving the expense of a cleaning bill or worse still having to replace the flooring altogether. Plumb Thumbs saves both time and money on any job! It allows you to cap off the radiator as a fully sealed unit without the need for draining down and also makes it safer to carry the radiator from A to B. Main Benefits Allows you to carry a radiator with 2 hands safely Avoids the risk of dirty water spilling A plumbing tool which replaces having to use your fingers/thumbs over the radiator connections Double ended tool - 1/2" and 3/4" Threads to allow for the removal of radiators easily and quickly Can be removed still contains water as a fully sealed unit When reconnecting to the system it requires very little repressuring Stops the radiator from drying out inside avoiding any rust

Review: Works perfectly - Used this product today and the fit was perfect and easily attached to the radiator. They are well made and will last a while and good value.
Review: The tool is made from high-quality plastic and is designed to withstand wear and tear. - The 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool is a versatile tool that can be used for a variety of plumbing tasks, including removing and installing radiator caps, as well as capping off pipes. It is made from high-quality plastic and is designed to be durable and long-lasting. Good: Versatility: The tool can be used for a variety of plumbing tasks, making it a versatile addition to any toolkit. Durability: The tool is made from high-quality plastic and is designed to withstand wear and tear. Easy to use: The tool is easy to use and can be operated by one person. Safe: The tool is designed to be safe for use and will not damage pipes or fittings. Affordable: The 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool is an affordable option for plumbers of all levels of experience. Light weight: The tool is lightweight and easy to carry, making it convenient to take with you to job sites. Bad: Not as durable as some other tools: The tool may not be as durable as some other tools, such as brass tools. May not be suitable for heavy-duty use: The tool is not designed for heavy-duty use and may not be suitable for use on older or corroded pipes. May not be as effective on some types of pipes: The tool may not be as effective on some types of pipes, such as copper pipes. Some users have reported that the tool can be difficult to use on small or tight spaces: The tool may be difficult to use on small or tight spaces, such as behind radiators. Some users have reported that the tool can be difficult to use with worn-out or damaged caps: The tool may be difficult to use with worn-out or damaged caps. Overall: The 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool is a good option for plumbers who are looking for a versatile, affordable, and easy-to-use tool for removing and installing radiator caps. However, it may not be as durable as some other tools and may not be suitable for heavy-duty use.

## Features

- Plumb Thumbs is a radiator capping tool which is quick and simple to use when carrying out radiator removal. It is a replacement for having to use fingers/thumbs over the radiator connections
- Double ended tool featuring both ½” (15mm) and ¾” (22mm). The threads for each size pipe will ensure every radiator can be removed was ease
- Eliminates the need to drain radiators for fast and easy radiator removal. The radiator can be removed still containing water as a fully sealed unit. Avoids the risk of spilling or trailing dirty water
- Plumb Thumbs makes the job much easier and safer! No mess, No Fuss! The radiator capping tools allow you to use both hands to carry the radiator from A to B
- Stops the radiator from drying out and rusting inside. The heating system requires very little repressuring when reconnecting the radiator because of Plumb Thumbs holding the water within the unit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0721YL264 |
| Best Sellers Rank | 27,820 in DIY & Tools ( See Top 100 in DIY & Tools ) 207 in Central Heating System Accessories |
| Bit Compatibilities | ½ inch, ¾ inch |
| Brand | JD Brands |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,251) |
| Drive System | Phillips and slotted |
| Finish | Polished |
| Included Components | Pair of Plumbthumbs |
| Item Type Name | Radiator Capping Tool |
| Manufacturer | Grakob |
| Material | Plastic |
| Model Number | 2021-01FU-4-38306 |
| Number of Pieces | 1 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** JD Brands
- **Drive system:** Phillips and slotted
- **Finish type:** Polished
- **Material:** Plastic
- **Number of pieces:** 1

## Images

![Plumb Thumbs 15mm & 22mm Radiator Capping Tool - Radiator Drain Down Tool - Image 1](https://m.media-amazon.com/images/I/61lyd1lWVsL.jpg)

## Available Options

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

## Questions & Answers

**Q: How did you wind those on whilst so close to the wall**
A: You turn the radiator nut not the capping tool. Work very well.

**Q: This question was asked but answered incorrectly. How do you use these without water spilling out. Vaccuum doesnot hold all the water in the radiator.**
A: They screw on the threaded nuts on the radiator.

**Q: How do you stop the water from the feed going everywhere? Guessing you still need to drain that?**
A: Turn off the trv and lockshield then put a small container or heavy duty bag under the radiator, take the nut off from the radiator tail then tighten the plumb thumb onto it, do the same for the other side of the rad then lift it off and empty it outside. The flow and return won’t keep dripping if the valves are both off

**Q: you may as well just fit a blanking plug for 50 pence each**
A: if its nut and ring yes but if its 3/4 union face  you carn;t

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works perfectly
*by G***S on 23 March 2026*

Used this product today and the fit was perfect and easily attached to the radiator. They are well made and will last a while and good value.

### ⭐⭐⭐⭐⭐ The tool is made from high-quality plastic and is designed to withstand wear and tear.
*by A***R on 16 December 2023*

The 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool is a versatile tool that can be used for a variety of plumbing tasks, including removing and installing radiator caps, as well as capping off pipes. It is made from high-quality plastic and is designed to be durable and long-lasting. Good: Versatility: The tool can be used for a variety of plumbing tasks, making it a versatile addition to any toolkit. Durability: The tool is made from high-quality plastic and is designed to withstand wear and tear. Easy to use: The tool is easy to use and can be operated by one person. Safe: The tool is designed to be safe for use and will not damage pipes or fittings. Affordable: The 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool is an affordable option for plumbers of all levels of experience. Light weight: The tool is lightweight and easy to carry, making it convenient to take with you to job sites. Bad: Not as durable as some other tools: The tool may not be as durable as some other tools, such as brass tools. May not be suitable for heavy-duty use: The tool is not designed for heavy-duty use and may not be suitable for use on older or corroded pipes. May not be as effective on some types of pipes: The tool may not be as effective on some types of pipes, such as copper pipes. Some users have reported that the tool can be difficult to use on small or tight spaces: The tool may be difficult to use on small or tight spaces, such as behind radiators. Some users have reported that the tool can be difficult to use with worn-out or damaged caps: The tool may be difficult to use with worn-out or damaged caps. Overall: The 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool is a good option for plumbers who are looking for a versatile, affordable, and easy-to-use tool for removing and installing radiator caps. However, it may not be as durable as some other tools and may not be suitable for heavy-duty use.

### ⭐⭐⭐⭐ Very good product, just an important drawback
*by J***E on 1 March 2026*

Very good and useful tool, used it on many occasions with no problems Only issue is that they are not metal and can cross thread easily and they don’t thread nicely onto older type 3/4” rad tails that are curved. Unfortunately I’ve had to bin mine as this style of rad tails cross threaded them. Still a very positive review overall as this lasted around 2 years+, Just need to be mindful of what type of rad tail you are threading on to.

## Frequently Bought Together

- 15mm & 22mm Grakob RCT3 Plastic Plumb Thumbs Radiator Capping Tool
- Plumb Tub - SPI Radiator Draining Tub (Color May Vary)

---

## 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.co.th/products/86881421-plumb-thumbs-15mm-and-22mm-radiator-capping-tool-radiator-drain](https://www.desertcart.co.th/products/86881421-plumb-thumbs-15mm-and-22mm-radiator-capping-tool-radiator-drain)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-04*