---
product_id: 75043379
title: "Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2\" MIP/Sweat Inlet x 3/4\" Hose Bib Outlet"
brand: "midline valve"
price: "$86.21"
currency: USD
in_stock: true
reviews_count: 13
category: "Midline Valve"
url: https://www.desertcart.us/products/75043379-midline-valve-12-inch-frost-free-anti-siphon-sillcock-vacuum
store_origin: US
region: United States of America
---

# Anti-siphon vacuum breaker Dual 1/2" MIP/Sweat inlet 12-inch frost-free length Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet

**Brand:** midline valve
**Price:** $86.21
**Availability:** ✅ In Stock

## Summary

> 💧 Stay Frost-Free & Flow-Ready: The Ultimate Valve Upgrade for Smart Outdoor Living

## Quick Answers

- **What is this?** Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet by midline valve
- **How much does it cost?** $86.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/75043379-midline-valve-12-inch-frost-free-anti-siphon-sillcock-vacuum)

## Best For

- midline valve enthusiasts

## Why This Product

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

## Key Features

- • **Premium Durability:** Solid chrome-plated brass construction ensures long-lasting strength and a sleek, polished finish.
- • **Freeze-Proof Reliability:** 12-inch frost-free design keeps water flowing even in winter’s harshest chill.
- • **Universal Fit Flexibility:** Dual connection options (1/2" MIP threaded or sweat) for seamless installation in any setup.
- • **Backflow Protection Built-In:** Integral vacuum breaker prevents contamination, safeguarding your water supply effortlessly.
- • **Certified Safety & Performance:** Lead-free, UPC & NSF approved, rated for 150 PSI working pressure—trusted quality you can count on.

## Overview

The Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock combines a durable chrome-plated brass body with a frost-resistant 12-inch design and integral vacuum breaker to prevent freezing and backflow. Featuring dual 1/2" MIP or sweat inlet connections and a 3/4" hose bib outlet, it fits standard garden hoses and irrigation systems. Certified lead-free and approved by UPC and NSF, it supports up to 150 PSI, delivering reliable, safe outdoor water access year-round.

## Description

Product Description The Midline 10-inch frost-free sillcock with integral vacuum breaker prevents freezing and backflow. Made from lead-free, chrome-plated brass, it fits 1/2" MIP or sweat inlets and connects to a 3/4" MHT outlet. UPC and NSF approved, rated for 150 WOG. From the Manufacturer Anti-Siphon Frost Free Sillcock Hose X 1/2 Inch MIP/Sweat X 12 Inch Long -Chrome Plated With Vacuum Breaker - Lead Free, Approved By UPC, NSF, Working Pressure 150 WOG, And Chrome-Plated Brass Body and Tube.

Review: I will order more - This is perfect and works great. The quality is perfect. Price is great
Review: Works fine, but set up the plumbing correctly - Works fine, but set up the plumbing correctly. My water runs acidic so these valves do wear out, I have it installed so that my son can hold a wrench on the inside while I unscrew the valve outside. Use only the best pipe joint compound, Rectorseal, available on desertcart

## Features

- Sillcock with Dual Connection Options – Fits 1/2-inch MIP threaded or 1/2-inch solder cup (sweat) water supply connections for flexible installation.
- Standard Sillcock with 3/4-Inch MHT Outlet – Compatible with standard garden hoses, sprinklers, and irrigation systems for convenient outdoor water access.
- Durable Chrome-Plated Brass – Brass body and tube with a chrome-plated finish deliver long-lasting strength and a polished look.
- 12-Inch Frost-Free Anti-Siphon Design – Extended 10-inch length keeps the valve mechanism inside heated wall space to prevent freezing; integral vacuum breaker prevents backflow.
- Lead-Free & Certified – UPC and NSF approved; lead-free design meets safety standards; rated for 150 WOG working pressure for dependable performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00MA9FNLK |
| Brand | Midline Valve |
| Brand Name | Midline Valve |
| Connector Type | Solder |
| Customer Reviews | 4.3 out of 5 stars 614 Reviews |
| Exterior Finish | Chrome |
| Global Trade Identification Number | 00804595988459 |
| Included Components | Sillcock Outdoor Faucet |
| Inlet Connection Size | 0.75 Inches |
| Inlet Connection Type | Solder |
| Item Dimensions | 3 x 1 x 2 inches |
| Item Type Name | 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet |
| Item Weight | 0.16 Pounds |
| Item dimensions L x W x H | 3 x 1 x 2 inches |
| Manufacturer | Midline Valve |
| Manufacturer Part Number | 84343 |
| Material | Brass |
| Material Type | Brass |
| Maximum Pressure | 150 Pound per Square Inch |
| Model Number | 84343 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.75 Inches |
| Outlet Connection Type | Hose Thread (HT) |
| Size | 12 in. |
| Specification Met | NSF, UPC |
| Thread Size | 1/2 inch |
| Thread Type | MIP or Sweat |
| UPC | 804595988459 |
| Unit Count | 1.0 Count |
| Valve Type | Gate Valve |

## Product Details

- **Material:** Brass
- **Brand:** Midline Valve
- **Item dimensions L x W x H:** 3 x 1 x 2 inches
- **Exterior Finish:** Chrome
- **Inlet Connection Size:** 0.75 Inches
- **Inlet Connection Type:** Solder
- **Outlet Connection Type:** Sweat
- **Maximum Operating Pressure:** 150 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.75 Inches

## Images

![Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet - Image 1](https://m.media-amazon.com/images/I/6125zJXKCKL.jpg)
![Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet - Image 2](https://m.media-amazon.com/images/I/81tcuEo8qjL.jpg)
![Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet - Image 3](https://m.media-amazon.com/images/I/61w1aO7H2AL.jpg)
![Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet - Image 4](https://m.media-amazon.com/images/I/71Wu0iinb2L.jpg)
![Midline Valve 12 Inch Frost-Free Anti-Siphon Sillcock with Vacuum Breaker – Chrome-Plated Brass, 1/2" MIP/Sweat Inlet x 3/4" Hose Bib Outlet - Image 5](https://m.media-amazon.com/images/I/61mqyxWr+wL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I will order more
*by M***O on March 15, 2025*

This is perfect and works great. The quality is perfect. Price is great

### ⭐⭐⭐⭐⭐ Works fine, but set up the plumbing correctly
*by T***G on August 28, 2023*

Works fine, but set up the plumbing correctly. My water runs acidic so these valves do wear out, I have it installed so that my son can hold a wrench on the inside while I unscrew the valve outside. Use only the best pipe joint compound, Rectorseal, available on Amazon

### ⭐⭐⭐⭐⭐ Fast shipping
*by B***N on October 16, 2025*

Fast shipping good quality

## Frequently Bought Together

- Midline Valve 84343 Sillcock Pipe Chrome Plated Brass Body Frost Anti-Siphon with Integral Vacuum Breaker 1/2 inch MIP/Sweat Connection and 3/4 inch Hose Bib, 12
- Midline Valve 84323 Sillcock Pipe Chrome Plated Brass Body Frost Anti-Siphon with Integral Vacuum Breaker 1/2 inch MIP/Sweat Connection and 3/4 inch Hose Bib, 10

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-14*