---
product_id: 272820549
title: "AAS2 Reverse Osmosis Water Filter Automatic Shut Off Valve Quick Connect, 1 Count (Pack of 1), White"
brand: "ispring"
price: "€ 38.79"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.at/products/272820549-aas2-reverse-osmosis-water-filter-automatic-shut-off-valve-quick
store_origin: AT
region: Austria
---

# 65% pressure-triggered shutoff Effortless DIY installation Universal 1/4" quick-connect fittings AAS2 Reverse Osmosis Water Filter Automatic Shut Off Valve Quick Connect, 1 Count (Pack of 1), White

**Brand:** ispring
**Price:** € 38.79
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of leaks with smart shutoff tech—because clean water waits for no one!

## Quick Answers

- **What is this?** AAS2 Reverse Osmosis Water Filter Automatic Shut Off Valve Quick Connect, 1 Count (Pack of 1), White by ispring
- **How much does it cost?** € 38.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/272820549-aas2-reverse-osmosis-water-filter-automatic-shut-off-valve-quick)

## 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

- • **Leak-Free Assurance:** Precision-engineered valve reduces continual drain issues, protecting your system.
- • **Compact & Lightweight:** Small footprint (6.35 x 5.08 x 3.81 cm) and just 50g—perfect for under-sink setups.
- • **Smart Pressure Control:** Automatically stops water flow at 65% tank pressure to prevent waste and leaks.
- • **Universal Compatibility:** Seamlessly fits most reverse osmosis systems on the market, no hassle.
- • **Quick-Connect Convenience:** 1/4" fittings enable fast, tool-free installation—get it done in minutes.

## Overview

The iSpring AAS2 Automatic Shut-Off Valve is a compact, easy-to-install component designed for reverse osmosis water filtration systems. It automatically halts water flow when tank pressure reaches about 65% of supply pressure, preventing overflow and conserving water. Featuring universal 1/4" quick-connect fittings, it fits most RO systems and ensures reliable, leak-free operation, making it an essential upgrade for efficient, worry-free 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 |
|---------------|-------|
| Asin | B00866NE7G |
| Best Sellers Rank | #137 in Under-Sink Water Filters |
| Country Of Origin | China |
| Date First Available | 1 January 2024 |
| Is Discontinued By Manufacturer | No |
| Item Model Number | AAS2 |
| Manufacturer | iSpring |
| Product Dimensions | 6.35 x 5.08 x 3.81 cm; 50 g |

## Product Details

- **Brand:** iSpring
- **Included components:** part
- **Installation type:** Under Sink
- **Material:** Plastic
- **Special features:** Reverse Osmosis

## Images

![AAS2 Reverse Osmosis Water Filter Automatic Shut Off Valve Quick Connect, 1 Count (Pack of 1), White - Image 1](https://m.media-amazon.com/images/I/51kWApMXf2L.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked as described.
*by  on Reviewed in Canada 4 November 2025*

Worked as promised. Thanks

### ⭐⭐⭐⭐⭐ Good
*by  on Reviewed in the United Kingdom 4 October 2022*

Good

### ⭐⭐⭐⭐⭐ Works great
*by  on Reviewed in the United States 9 August 2026*

Great product easy to install works excellent

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-18*