---
product_id: 349328238
title: "iSpring AAS2 Reverse Osmosis Water Filter Automatic Shut-Off Valve Quick-Connect ASV"
brand: "ispring"
price: "S$75"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/349328238-ispring-aas2-reverse-osmosis-water-filter-automatic-shut-off-valve
store_origin: SG
region: Singapore
---

# 65% pressure-triggered shutoff Quick-connect 1/4" fittings Easy DIY installation iSpring AAS2 Reverse Osmosis Water Filter Automatic Shut-Off Valve Quick-Connect ASV

**Brand:** ispring
**Price:** S$75
**Availability:** ✅ In Stock

## Summary

> 💧 Stop wasting water, start saving effortlessly with iSpring’s smart shut-off valve!

## Quick Answers

- **What is this?** iSpring AAS2 Reverse Osmosis Water Filter Automatic Shut-Off Valve Quick-Connect ASV by ispring
- **How much does it cost?** S$75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/349328238-ispring-aas2-reverse-osmosis-water-filter-automatic-shut-off-valve)

## Best For

- ispring enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Small 5.1x6.4x3.8 cm design, only 50g—fits anywhere without bulk 📏
- • **Smart Pressure Control:** Automatically stops water flow at 65% tank pressure to prevent waste 💧
- • **Universal Compatibility:** Works seamlessly with most RO systems on the market, no hassle ⚙️
- • **Quick-Connect Convenience:** Tool-free 1/4" fittings for fast, secure installation 🛠️
- • **Water Conservation Champion:** Reduces unnecessary water drainage, saving both resources and money 💡

## Overview

The iSpring AAS2 Automatic Shut-Off Valve is a compact, NSF-certified plastic valve designed for reverse osmosis systems. It automatically halts water flow when tank pressure hits 65% of supply pressure, preventing water waste. Featuring quick-connect 1/4" fittings, it’s easy to install and compatible with most RO brands, making it an essential upgrade for efficient, eco-conscious water filtration.

## Description

Reverse Osmosis Water Filter Automatic Shut-Off Valve with Quick-Connect fittings, 1/4" - Allows your system to turn off the water supply when the tank pressure reaches approximately 65% of the supply water pressure; - 1/4" fitting; - Easy to install, as the picture shown. 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. Remark: Continual drain problem can be caused by different factors, including automatic shut-off valve, check valve, flow restrictor, or tank pressure. Replacing the ASV may not help if the problem is caused by other factors.

## Features

- iSpring Automatic Shut-off Valve (ASV) - Quick Fitting
- Compatible with most Reverse Osmosis systems (including brand names) in the market
- Allows your system to turn off the water supply when the tank pressure reaches approximately 65% of the supply water pressure
- 1/4" fittings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Product Dimensions | 5.1D x 6.4W x 3.8H Centimeters |
| Item Weight | 50 Grams |
| External Testing Certification | NSF |
| Product Benefits | Easy to install with quick fitting and aids in water conservation |
| Brand | iSpring |
| UPC | 662425048229 |
| Global Trade Identification Number | 00662425048229 |
| Net Quantity | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | iSpring |
| Country of Origin | USA |
| Item model number | AAS2 |
| ASIN | B00866NE7G |

## Product Details

- **Material:** Plastic
- **Product Dimensions:** 5.1D x 6.4W x 3.8H Centimeters
- **Item Weight:** 50 Grams
- **External Testing Certification:** NSF
- **Product Benefits:** Easy to install with quick fitting and aids in water conservation

## Images

![iSpring AAS2 Reverse Osmosis Water Filter Automatic Shut-Off Valve Quick-Connect ASV - Image 1](https://m.media-amazon.com/images/I/51kWApMXf2L.jpg)
![iSpring AAS2 Reverse Osmosis Water Filter Automatic Shut-Off Valve Quick-Connect ASV - Image 2](https://m.media-amazon.com/images/I/61wc8kXTmhL.jpg)

## Questions & Answers

**Q: Will this work with ispring rcc7ak 6-stage?**
A: Hi,

Thank you for the question. Yes, this is the correct component of this system. For immediate assistance, please call us at 678-261-7611 or visit our website and click the "Support" link on top to create a support ticket. We will respond within 24 business hours.

Thanks,

iSpring Water Systems LLC

**Q: I replaced this valve and now have air trapped. loud water hammer. bleeding the normal way doesn't help. how do i bleed the other lines?**
A: Welcome to the hammer noise Jay:  First of all the noise is not caused by the valve you replaced but from the one on the storage tank.  
a.  shut off the valve on the storage tank and turn on the water faucet to see if it stops.
     if so it's the valve on the storage tank.
b.  How old is the storage tank.  If 3 or more years replace the tank because the 
     bladder goes bad and loses pressure.  If you remove the valve stem and black 
     juice comes out the bladder has failed. If not I found the tank dry air pressure has 
     to be between 5 to 7 lbs. when empty of water.  Mine is at 6 psi.  Need a low 
     pressure tire gauge.  You might also have to replace the shut off valve on your 
     tank.
     lots of steps but mine stopped hammering when work was done.
     Hope this helps and good luck.

**Q: How do you test valve?**
A: To be honest I’ve had a lot of problems with this whole design. They don’t last long for me and it’s not this manufacturer I’m referring to. I’ve bought others and I have the same  problem over and over. I just chuck them and buy a new one. 3 months later I do it again. Mine is set up on a reef tank for replenishment.

**Q: I installed the 4-way valve, but water keeps draining unless I disconnect the booster pump, what should I do?**
A: Hi there, The systems with a booster pump can't use this type of auto shut off valve. Please reach out to our customer service team so we can help troubleshoot and send the correct parts needed to fix the system.

iSpring Water Systems, LLC

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-23*