---
product_id: 498353779
title: "Hydro Master Automatic Air Vent Valve 1/8 Inch Brass"
brand: "hydro master"
price: "$U3103"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/498353779-hydro-master-automatic-air-vent-valve-1-8-inch-brass
store_origin: UY
region: Uruguay
---

# 150 psi & 240°F max pressure/temp Heavy-duty brass build 1/8" universal auto air vent Hydro Master Automatic Air Vent Valve 1/8 Inch Brass

**Brand:** hydro master
**Price:** $U3103
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your heating game with the Hydro Master – where precision meets power!

## Quick Answers

- **What is this?** Hydro Master Automatic Air Vent Valve 1/8 Inch Brass by hydro master
- **How much does it cost?** $U3103 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/498353779-hydro-master-automatic-air-vent-valve-1-8-inch-brass)

## Best For

- hydro master enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from eco-friendly, heavy-duty brass for unmatched durability.
- • **Perfect Pairing:** Optimized to work flawlessly with 1" and 1-1/4" air scoops for superior air venting.
- • **Effortless Installation:** 1/8" male NPT threaded connection for quick, secure setup.
- • **Pressure & Heat Resilience:** Operates reliably up to 150 psi and 240°F, ensuring peak performance.
- • **Seamless System Compatibility:** Fits most heating systems with a universal 1/8" auto air valve vent.

## Overview

The Hydro Master Automatic Air Vent Valve is a robust 1/8" brass valve designed for universal compatibility with most heating systems. Engineered to withstand pressures up to 150 psi and temperatures up to 240°F, it ensures efficient air venting and system longevity. Featuring a durable brass construction and a 1/8" male NPT threaded connection, it pairs perfectly with 1" and 1-1/4" air scoops for optimal performance.

## Description

Hydro Master Automatic Air Vent Valve 1/8 Inch Brass

## Features

- Universal 1/8" auto air valve vent, suits for most heating system
- Made from heavy duty brass construction, durable and eco-friendly
- Maximum operating pressure 150 psi and maximum operating temperature 240°F
- 1/8" male NPT threaded connection
- Working great with our 1" and 1-1/4" air scoop

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Boro |
| Package Dimensions | 9.7 x 5.21 x 5.11 cm; 191 g |
| Item model number | 692232533465 |
| Size | 1/8" |
| Colour | Brass |
| Material | Brass |
| Item Package Quantity | 1 |
| Maximum Pressure | 150 Pound per Square Inch |
| Measurement System | inch |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 191 g |

## Product Details

- **Material:** Brass
- **Brand:** HYDRO MASTER
- **Exterior finish:** Brass
- **Inlet connection size:** 0.13 inches
- **Inlet connection type:** National Pipe Tapered
- **Outlet connection type:** MNPT
- **Maximum operating pressure:** 150 Pound per Square Inch
- **Number of ports:** 1
- **Outlet connection size:** 0.13 inches
- **Manufacturer:** Boro

## Images

![Hydro Master Automatic Air Vent Valve 1/8 Inch Brass - Image 1](https://m.media-amazon.com/images/I/61GfawJNiEL.jpg)
![Hydro Master Automatic Air Vent Valve 1/8 Inch Brass - Image 2](https://m.media-amazon.com/images/I/61PrDwi2qKL.jpg)
![Hydro Master Automatic Air Vent Valve 1/8 Inch Brass - Image 3](https://m.media-amazon.com/images/I/71GwKWKlN7L.jpg)
![Hydro Master Automatic Air Vent Valve 1/8 Inch Brass - Image 4](https://m.media-amazon.com/images/I/71+YBxVRX6L.jpg)
![Hydro Master Automatic Air Vent Valve 1/8 Inch Brass - Image 5](https://m.media-amazon.com/images/I/617rmxJtTKL.jpg)

## Questions & Answers

**Q: Do you loosen the cap on top?**
A: Yes, you must loosen the cap for the air to vent. If you don't it has no where to vent to. Loosen cap 1/2 to full turn. don't over loosen.

**Q: can this be mounted horizontally?**
A: The air vent must be installed vertically.

**Q: Can this be used to purge air from a well water line (cold) after the pump and before it gets to the house?**
A: Yes, but it should be installed at the highest point in the line.

**Q: Does Bignell know water is water hot or cold ?**
A: No it is for steam it only works hot ..used to bleed the line of air so water flows evenly thru line

## Frequently Bought Together

- Hydro Master Automatic Air Vent Valve 1/8 Inch Brass
- Watts 0342691 30 PSI Pressure Relief Valve, Bronze, 3/4" 335 M2-030
- Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1/2" MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi

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**Shop now:** [https://www.desertcart.uy/products/498353779-hydro-master-automatic-air-vent-valve-1-8-inch-brass](https://www.desertcart.uy/products/498353779-hydro-master-automatic-air-vent-valve-1-8-inch-brass)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-19*