---
product_id: 38497956
title: "1/4\" Automatic Shut-Off Valve with Quick-Connect Fittings For RO Reverse Osmosis(Pack of 2)"
brand: "digiten"
price: "KD 4.90"
currency: KWD
in_stock: true
reviews_count: 11
category: "Digiten"
url: https://www.desertcart.com.kw/products/38497956-1-4-automatic-shut-off-valve-with-quick-connect-fittings
store_origin: KW
region: Kuwait
---

# Auto shut-off at ~65% tank pressure 4-way valve design for seamless flow control 1/4" Quick-Connect Fittings 1/4" Automatic Shut-Off Valve with Quick-Connect Fittings For RO Reverse Osmosis(Pack of 2)

**Brand:** digiten
**Price:** KD 4.90
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of leaks and waste with DIGITEN’s smart shut-off valve—because your RO system deserves the best.

## Quick Answers

- **What is this?** 1/4" Automatic Shut-Off Valve with Quick-Connect Fittings For RO Reverse Osmosis(Pack of 2) by digiten
- **How much does it cost?** KD 4.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/38497956-1-4-automatic-shut-off-valve-with-quick-connect-fittings)

## Best For

- digiten enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Reliable:** High-quality plastic construction built to last through countless filter changes and daily use.
- • **Value Pack Advantage:** Includes two valves so you’re always ready for maintenance or upgrades—never get caught off guard.
- • **Effortless Installation:** Top-marked 'in & out' ports make setup a breeze—no guesswork, just plug & play.
- • **Smart Water Conservation:** Automatically stops water flow at optimal pressure, slashing waste and saving your utility bills.
- • **Universal RO Compatibility:** Designed to fit most reverse osmosis systems, ensuring seamless integration with your setup.

## Overview

The DIGITEN 1/4" Automatic Shut-Off Valve with Quick-Connect Fittings is a dual-pack essential for reverse osmosis water systems. It features a 4-way valve design with clear 'in & out' markings for easy installation, automatically halting water flow when tank pressure hits about 65% of supply pressure. Compatible with most RO setups, this durable valve reduces water waste and ensures efficient system operation, making it a must-have for proactive water filtration maintenance.

## Description

Easy to install.The "in & out" markings are on the top of the valve. The top side of the valve is the high pressure side and the bottom side is the low pressure side. The high pressure from the filter housings goes to the "in" on the top of the valve. Then the high pressure "out" goes to the membrane housing inlet. The membrane housing low pressure outlet connects to the "in" on the bottom side of the valve. The "out" on the bottom goes to the tank.

Review: Works fine - Basic ASO valve, works as expected. Can't speak to the actual pressures that trigger the valve as I didn't measure them, but it seems to be standard. If you have an RO system with a mechanical float in the tank that plugs the output tube and develops backpressure that way (like on an office water cooler), the minimum pressure differential may not ever be reached to trigger the valve and shut off the flow, and it might cause it to flutter or make a loud and annoying buzzing sound. Your RO membrane will continuously pump out wastewater, obviously a major problem. A fix for this is to run the wastewater output through the high pressure side of the ASO valve (side that says In and Out, not the side with the screws) instead of the feed water going into the RO membrane like the typical configuration requires. Wastewater comes out at a lower pressure than incoming city/well water, so the difference between wastewater and clean RO output water will be closer, and the valve will actually open and close quickly like it should. It's not a perfect fix, since running high-TDS wastewater through the ASO valve will make it gunk/mineralize up faster. But they're dirt cheap to swap out, and it definitely beats the hassle of retrofitting a solenoid and electric float switch into a setup that wasn't designed for it.
Review: Good replacement Automatic Shut-Off Valve for my Reverse Osmosis System - The Automatic Shut-Off Valve (ASO) is a commonly forgotten component of a reverse osmosis system during normal maintenance such as filter changes. However they do age and wear out, and eventually don't shut off at the right time and consequently waste a lot of water. I purchased these to replace one that had failed - I could hear the water running continuously - and also one as a spare for the next time this part needs to be replaced. Product quality looks good, and after installation I could tell it had shut off the water flow at the right time. Delivery was prompt, I would buy from this seller again.

## Features

- 1/4" Quick and easy connect fitting.
- Suitable for most of the reverse osmosis water system.
- Automatically turn off the water supply when the tank pressure reaches approximately 65% of the supply water pressure.
- Package: 4 Way Shut-Off Valve × 2

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MDM0T0I |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #24,821 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Undersink Water Filtration Replacement Parts |
| Brand | DIGITEN |
| Customer Reviews | 4.6 4.6 out of 5 stars (805) |
| Date First Available | October 14, 2016 |
| Inlet Connection Size | 0.25 Inches |
| Inlet Connection Type | Quick Connect |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 2 |
| Item Weight | 0.64 ounces |
| Item dimensions L x W x H | 7 x 3.4 x 5.2 inches |
| Item model number | ROCON2-70 |
| Manufacturer | DIGITEN |
| Material | Plastic |
| Maximum Operating Pressure | 65 Pound per Square Inch |
| Number of Ports | 4 |
| Outlet Connection Size | 0.25 Inches |
| Outlet Connection Type | Quick Connect |
| Part Number | ROCON2-70 |
| Product Dimensions | 7 x 3.4 x 5.2 inches |
| Size | 125.48 cubic inches |

## Product Details

- **Brand:** DIGITEN
- **Inlet Connection Size:** 0.25 Inches
- **Inlet Connection Type:** Quick Connect
- **Item dimensions L x W x H:** 7 x 3.4 x 5.2 inches
- **Manufacturer:** DIGITEN
- **Material:** Plastic
- **Maximum Operating Pressure:** 65 Pound per Square Inch
- **Number of Ports:** 4
- **Outlet Connection Size:** 0.25 Inches
- **Outlet Connection Type:** Quick Connect

## Images

![1/4" Automatic Shut-Off Valve with Quick-Connect Fittings For RO Reverse Osmosis(Pack of 2) - Image 1](https://m.media-amazon.com/images/I/61QQxNhEWDL.jpg)

## Questions & Answers

**Q: Does this work with the watt premier ro system?**
A: Yep, more specifically for an watts RO pure plus system.  Just installed one of these and it worked without any issues

**Q: How do i connect it to watts premier wp-5? The system gas it's own aso inside, air-gap faucet and tank line is 3/8, not 1/4?**
A: If your supply/ return lines are 3/8ths od and the valve is 1/4 od  this is probably not the valve you need, suggest you contact the manufacturer of your filter for a suitable replacement

**Q: Is there any warranty on this?**
A: This has worked very well for me since purchase some years ago.
It replaced a defective unit on my RO system.  
At the price point - if it died now at 4 years - I'd have no complaints.  
But it marches on.  So just drop the hammer on it, and move on.

**Q: Have 5 stage ro, upgraded tank to 80 gallon. works fine. now added 2nd membrane and 2nd 120 gallon tank. reject water never stops. how to fix ?**
A: It needs to be able to build pressure for it to shut off. Your tank may not be building  any pressure check to make sure you don't have any leaks in the tank

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works fine
*by A***L on December 8, 2025*

Basic ASO valve, works as expected. Can't speak to the actual pressures that trigger the valve as I didn't measure them, but it seems to be standard. If you have an RO system with a mechanical float in the tank that plugs the output tube and develops backpressure that way (like on an office water cooler), the minimum pressure differential may not ever be reached to trigger the valve and shut off the flow, and it might cause it to flutter or make a loud and annoying buzzing sound. Your RO membrane will continuously pump out wastewater, obviously a major problem. A fix for this is to run the wastewater output through the high pressure side of the ASO valve (side that says In and Out, not the side with the screws) instead of the feed water going into the RO membrane like the typical configuration requires. Wastewater comes out at a lower pressure than incoming city/well water, so the difference between wastewater and clean RO output water will be closer, and the valve will actually open and close quickly like it should. It's not a perfect fix, since running high-TDS wastewater through the ASO valve will make it gunk/mineralize up faster. But they're dirt cheap to swap out, and it definitely beats the hassle of retrofitting a solenoid and electric float switch into a setup that wasn't designed for it.

### ⭐⭐⭐⭐⭐ Good replacement Automatic Shut-Off Valve for my Reverse Osmosis System
*by R***S on November 4, 2025*

The Automatic Shut-Off Valve (ASO) is a commonly forgotten component of a reverse osmosis system during normal maintenance such as filter changes. However they do age and wear out, and eventually don't shut off at the right time and consequently waste a lot of water. I purchased these to replace one that had failed - I could hear the water running continuously - and also one as a spare for the next time this part needs to be replaced. Product quality looks good, and after installation I could tell it had shut off the water flow at the right time. Delivery was prompt, I would buy from this seller again.

### ⭐⭐⭐⭐⭐ Worked, install hints
*by T***X on November 17, 2023*

First of these 2 replacement valves worked fine, stored the spare. Happy with our RO unit about 25 yrs now…install hints?: Cut off water pressures from house and RO tank, and before removing old valve, note the in/out valve end labels, also record the 4 line locations (pic, labels, or notes). Remove small plastic line locking c-clips. To remove lines, push in the locking collars and pull line out. (can also use open end 5/16” or 8mm wrench to help pushing in these quick release collars, saves fingernails). Reinstall lines on new valve, make sure they push all the way in (about ½”), then pull outward firmly to seat. Apply plastic line lock clips. If you have a seating leak afterward, remove the ¼” line, and cut off the line’s end. (seating portion only, it probably has surface scratches seeping). Two notes: #1. You can damage/foul these valves when plunging clogged sink drains. If you need to use a plunger, first remove the sink drain ¼” RO drain pipe hose, then wrap towel/rag around the ¼” drain hole opening to catch those small pressure squirts while plunging your sink drain. #2: Occasional gurgling drain sound when unit is removing the wastewater in normal operation? You can shove the ¼ “drain line into the drain pipe a tad further so it drains down the far inside of the sink pipe, and no gurgle. We prefer to leave line inserted slightly and let normal occasional RO wastewater fall/gurgle somewhat down into drain pipe's water trap. A consistent gurgling when close by the sink will let you know when the valve has finally failed and is wasting water all day. Excessive gurgling sounds because you are using more than your usual needs in filter water? Perhaps you just want to silence it for company coming into kitchen? Put your sink drain plug into the gurgling drain side, that muffles the sound.

## Frequently Bought Together

- DIGITEN 1/4" Automatic Shut-Off Valve with Quick-Connect Fittings For RO Reverse Osmosis(Pack of 2)
- APEC Water Systems 1/4" Quick Connect Check Valve Replacement Part (Check-VAL)
- DIGITEN 50GPD Flow Restrictor 300CC 1/4" Quick Connect for RO Reverse Osmosis (pack of 2)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-16*