---
product_id: 38497958
title: "3/8&1/4 inch RO Tubing Used Plastic Float Valve Shut Off Float Ball Float Switch to Auto-Fill Water Stock Tank,Bucket, Livestock Pool,Cattle Trough, Aquariums, Aquaculture, Water Reservoir"
brand: "puresec"
price: "€ 11.96"
currency: EUR
in_stock: true
reviews_count: 8
category: "Pure Sec"
url: https://www.desertcart.ie/products/38497958-3-8-and-1-4-inch-ro-tubing-used-plastic
store_origin: IE
region: Ireland
---

# Auto water shutoff Easy 5/8" hole install Fits 1/4" & 3/8" tubing 3/8&1/4 inch RO Tubing Used Plastic Float Valve Shut Off Float Ball Float Switch to Auto-Fill Water Stock Tank,Bucket, Livestock Pool,Cattle Trough, Aquariums, Aquaculture, Water Reservoir

**Brand:** puresec
**Price:** € 11.96
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of leaks—automate your water flow like a pro!

## Quick Answers

- **What is this?** 3/8&1/4 inch RO Tubing Used Plastic Float Valve Shut Off Float Ball Float Switch to Auto-Fill Water Stock Tank,Bucket, Livestock Pool,Cattle Trough, Aquariums, Aquaculture, Water Reservoir by puresec
- **How much does it cost?** € 11.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/38497958-3-8-and-1-4-inch-ro-tubing-used-plastic)

## Best For

- puresec enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Quick setup with a simple 5/8 inch drilled hole and push-fit connectors—no special tools needed.
- • **Safe for Water & Food Use:** Made from non-toxic, NSF and WQA certified materials ensuring purity and safety.
- • **Precision Auto Water Control:** Automatically starts and stops water flow to prevent overflow and save water.
- • **Universal Tubing Compatibility:** Works seamlessly with both 1/4 inch and 3/8 inch RO tubing for versatile setups.
- • **Adjustable Float for Custom Water Levels:** Easily control water height to fit any tank, bucket, or reservoir with precision.

## Overview

The PureSec float valve is a high-quality, plastic float ball switch designed for automatic water level control in RO systems, livestock troughs, aquariums, and more. Compatible with 1/4" and 3/8" tubing, it features easy installation via a 5/8" mounting hole and push-fit connectors. Made from safe, non-toxic materials and certified to NSF and WQA standards, it ensures reliable, adjustable water shutoff to prevent overflow and conserve water.

## Description

What is it? Float valves are used to shut down your reverse osmosis system when the float is elevated,It automatically start and stop water flow.The float is adjustable to allow you to control the water height.It fits standard O.D. 1/4 inch or 3/8" inch Copper, CPVC, PEX and PVC tubing for most RO systems Where to use it? Float valves are simple to install and can save a lot of water from ending up on the floor. They can be installed in containers as small 1 gallon pails, sumps, and 200 plus gallon commercial storage containers to shut off the flow of water. Even if you do not have a large storage container a simple 5 gallon bucket with a float valve installed in it will help save money from having water end up on the floor or best case scenario just going down the drain. Also you can convert any coffee or espresso machine to automatic refill How to use it? Installation is as easy as drilling a small hole in the container, sliding the float in and attaching using the included nut. and then pop in your 1/4" tubing into 90 degree 1/4 tube fitting , pushing until it won't go in. To remove, just push in the outer circle on either end and pull right out. You need to make sure the tubing is cut squared to insure no leaks. Our push connector is quality, reliability, and economy in potable water service. What you will receive? Float Valve x 1 Union elbow connector x 1( Tube OD1/4" by Tube OD 1/4") Straight Union Connector x 1( Tube OD1/4" by Tube OD 3/8" )

Review: Exactly what i needed - Needed this for my kureg. I might ad an inline filter too. I would suggest to keep pressure as low as you can, that will still keep up with demand. That will keep the valve from being under too much pressure and may help it last longer. Also don't forget to add a valve close to the the float valve for easy shut off for regular machine maintenance. This is my set up, a splitter under my sink to a valve under the sink set as low as i could, to a valve right behind my machine, to the float valve. Works great.
Review: For Vertical mounting only. - I bought these for a project where they needed to be mounted on a horizontal surface. So, they didn't work for me. But, they are of nice quality so, I'll just keep them for when another project presents itself.

## Features

- ★WATER&FOOD USE: Our float valves are made from safe,non-toxic materials. They are widely used in water filter purification Sysstem
- ★SIZE &TUBE COMPATIBLE WITH: With 1/4 inch quick conect Plug to connect with 1/4 inch quick connectors, Included 3/8 to 1/4 inch Quick Connector makes it also works with 3/8 inch RO Tubing. Requires a 5/8" mounting hole( Searching Asin:B01N9K9DV6 to buy 5/8" Drill Bit); Compatiable with 1/4 or 3/8 inch O.D. RO Tubing
- ★FUNCTION&QUALITY: Float valves are used to shut down your reverse osmosis system when the float is elevated,It automatically start and stop water flow.The float is adjustable to allow you to control the water height. Our quality system ensures a superior level of product quality.
- ★EASY INSTALLATION: Installation is as easy as drilling a small 5/8"hole in the Water Tank, sliding the float Ball in and attaching using the included nut. and then pop in your 1/4" tubing into 1/4 inch Elbow connector , pushing until it won't go in. To remove, just push in the outer circle on either end and pull right out. You need to make sure the tubing is cut squared to insure no leaks.
- ★Notes: Our fittings can be installed without Locking clips. it also can be used with Locking clips ( Search B07WXRMQPF and B07WYMZQBC to buy)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MY4K0YX |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #110,511 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #139 in Float Valves |
| Brand | PureSec |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (185) |
| Date First Available | January 3, 2017 |
| Exterior Finish | Plastic |
| Inlet Connection Size | 0.38 Inches |
| Inlet Connection Type | Cross Linked Polyethylene |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.6 ounces |
| Item model number | PureSec-MFS2 |
| Manufacturer | Jeamsworld |
| Material | Plastic |
| Number Of Pieces | 3 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.25 Inches |
| Outlet Connection Type | PEX |
| Package Dimensions | 7 x 5 x 2 inches |
| Part Number | PureSec-MFS2 |
| Size | 1/4 inch, 3/8 inch |
| Specification Met | ANSI B1.20.1, NSF, WQA |
| UPC | 607569639957 |

## Product Details

- **Brand:** PureSec
- **Exterior Finish:** Plastic
- **Inlet Connection Size:** 0.38 Inches
- **Inlet Connection Type:** Cross Linked Polyethylene
- **Manufacturer:** Jeamsworld
- **Material:** Plastic
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.25 Inches
- **Outlet Connection Type:** PEX
- **Specification Met:** ANSI B1.20.1, NSF, WQA

## Images

![3/8&1/4 inch RO Tubing Used Plastic Float Valve Shut Off Float Ball Float Switch to Auto-Fill Water Stock Tank,Bucket, Livestock Pool,Cattle Trough, Aquariums, Aquaculture, Water Reservoir - Image 1](https://m.media-amazon.com/images/I/41oRk9xgJ8L.jpg)

## Questions & Answers

**Q: Can this be mounted in the bottom of a tank?**
A: it is wall mounted or ceilling mounted.  if you mounted in the bottom of the tank, it will not shut off. so i suppose not.

**Q: What specific plastic is this made of? chemically i mean is it hdpe? or ??**
A: POM

**Q: Has anyone used this float valve for the back of the tank of a Keurig K50 coffee maker or the like? If so, what was the results?**
A: I used it in my Keurig (not sure of model number)  it has worked great.  Have not had to add water since and no leaks.

**Q: Can this be mounted on the side of a tank that has no lid?**
A: I suppose if you want to have it as an eyesore in tank and you can rig it, or have a hole drilled in the tank.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exactly what i needed
*by R***O on May 7, 2022*

Needed this for my kureg. I might ad an inline filter too. I would suggest to keep pressure as low as you can, that will still keep up with demand. That will keep the valve from being under too much pressure and may help it last longer. Also don't forget to add a valve close to the the float valve for easy shut off for regular machine maintenance. This is my set up, a splitter under my sink to a valve under the sink set as low as i could, to a valve right behind my machine, to the float valve. Works great.

### ⭐⭐⭐⭐⭐ For Vertical mounting only.
*by B***. on January 18, 2023*

I bought these for a project where they needed to be mounted on a horizontal surface. So, they didn't work for me. But, they are of nice quality so, I'll just keep them for when another project presents itself.

### ⭐⭐⭐⭐ Nice valve.
*by B***E on October 13, 2025*

Great price, the valve came assembled backwards. Took a few minutes to realize that it was assemble backwards. One screw, turned the float around or upside down and it worked great after that.

## Frequently Bought Together

- PureSec 3/8&1/4 inch RO Tubing Used Plastic Float Valve Shut Off Float Ball Float Switch to Auto-Fill Water Stock Tank,Bucket, Livestock Pool,Cattle Trough, Aquariums, Aquaculture, Water Reservoir
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-17*