---
product_id: 306451023
title: "Water Filter/Softener Air Gap With 3/4-inch Female Threaded Inlet for Use With 1-1/2-inch or 2 inches (with coupler) Standpipe (ET115-002, G-175, DLA-G15)"
brand: "air gap international"
price: "¥7660"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/306451023-water-filter-softener-air-gap-with-3-4-inch-female
store_origin: JP
region: Japan
---

# 0.5-9 GPM flow range 3/4-inch threaded inlet Splash-guard dry operation Water Filter/Softener Air Gap With 3/4-inch Female Threaded Inlet for Use With 1-1/2-inch or 2 inches (with coupler) Standpipe (ET115-002, G-175, DLA-G15)

**Brand:** air gap international
**Price:** ¥7660
**Availability:** ✅ In Stock

## Summary

> 💧 Keep it clean, dry, and flawless—your water system’s unsung hero!

## Quick Answers

- **What is this?** Water Filter/Softener Air Gap With 3/4-inch Female Threaded Inlet for Use With 1-1/2-inch or 2 inches (with coupler) Standpipe (ET115-002, G-175, DLA-G15) by air gap international
- **How much does it cost?** ¥7660 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/306451023-water-filter-softener-air-gap-with-3-4-inch-female)

## Best For

- air gap international enthusiasts

## Why This Product

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

## Key Features

- • **Splash-Proof Design:** Innovative splash guard ensures a dry, mess-free air gap every time.
- • **Certified Reliability:** UPC & IPC listed with lot-tested quality for consistent, worry-free performance.
- • **Precision Flow Control:** Handles 0.5 to 9 gallons per minute without splash—perfect for any water softener setup.
- • **Effortless Installation:** 3/4-inch female threaded inlet accepts standard PVC pipes or adapters for quick setup.
- • **Universal Compatibility:** Fits 1-1/2 or 2-inch standpipes with easy pressure fit or glue installation.

## Overview

The ET115-002 Air Gap is a certified, polymer water softener and filter air gap designed for 1-1/2 or 2-inch standpipes. It supports flow rates from 0.5 to 9 GPM while preventing water splash with its splash guard. Featuring a 3/4-inch female threaded inlet, it offers versatile, easy installation options and is UPC and IPC listed for guaranteed performance.

## Description

The ET115-002 universal water softener or water filter air gap is designed to provide a convenient way to install an air gap into 1-1/2-inch standpipe drain. This air gap can be connected using a rigid PVC pipes or flex tubing with adapters. The unique design provides a completely protected air gap without any possibility of water splashing out. The inlet accommodates 3/4-inch threaded PVC pipes or adapters. The ET115-002’s minimum flow rate is 0.5 gallons per minute (GPM) and the maximum flow rate is 9 gallons per minute (GPM). The minimum and maximum flow rates through an air gap are the lowest and highest flow rates at which water does not splash outside of an air gap. At minimum or maximum flow rate, the air gap is dry on the outside. It is easy to use, easy to install, and easy to maintain. The ET115-002 air gap is UPC and IPC listed.

## Features

- ❤ FLOW RATE: The ET115-002’s minimum flow rate is 0.5 gallons per minute (GPM) and the maximum flow rate is 9 gallons per minute (GPM). The minimum and maximum flow rates through an air gap are the lowest and highest flow rates at which water does not splash outside of an air gap. At minimum or maximum flow rate, the air gap is dry on the outside.
- ❤ SIMPLE INSTALLATION: The ET115-002 is designed for connecting discharge water tubing from a water softener system to a drain line. Its 3/4-inch MIPT threaded inlet accepts a 3/4-inch threaded PVC pipe or the 3/4-inch threaded ET170-XXX series air gap adapters (models -009 to -014). The ET115-002 installs to a 1-1/2 inches OD standpipe or 2 inches OD standpipe with 2-inch couplers. The ET115-002 can be pressure fit or glued to a plastic standpipe.
- ❤ STANDPIPE CONNECTION: The ET115-002 connects to a 1-1/2 inches OD standpipe or 2 inches OD standpipe with couplers. The air gap’s flow capacity is 15 gallons/minute.
- ❤ DRY OPERATION: The ET115-002 is designed with a splash guard to assure a dry operation. It is also recommended to install the ET115-002 at least 18 inches above the P-Trap to avoid water splashing back from the air gap.
- ❤ CERTIFICATION: ET115-002 is UPC (Uniform Plumbing Code) IPC (International Plumbing Code) Listed. The testing is conducted for every manufactured lot to ensure consistent performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B092NY637M |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #79,366 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #58 in Water Softeners |
| Brand | AIR GAP INTERNATIONAL |
| Color | White |
| Connector Type | Trap |
| Customer Reviews | 4.7 4.7 out of 5 stars (54) |
| Date First Available | April 15, 2021 |
| Exterior Finish | Brass |
| Item Weight | 3.2 ounces |
| Item model number | ET115-002 |
| Manufacturer | AIR GAP INTERNATIONAL |
| Material | Polymer |
| Number of Pieces | 1 |
| Package Dimensions | 4.09 x 2.13 x 2.13 inches |
| Part Number | ET115-002 |
| Size | 1 Count (Pack of 1) |
| Style | multipurpose air gap |
| Thread Size | 0.75 inches |
| Thread Type | NPT |
| UPC | 810732031186 |
| Usage | Commercial/Residential |

## Product Details

- **Brand:** AIR GAP INTERNATIONAL
- **Color:** White
- **Connector Type:** Trap
- **Exterior Finish:** Brass
- **Item Weight:** 0.09 Kilograms
- **Material:** Polymer
- **Number of Pieces:** 1
- **Size:** 1 Count (Pack of 1)
- **Thread Size:** 0.75 inches
- **Thread Type:** NPT

## Images

![Water Filter/Softener Air Gap With 3/4-inch Female Threaded Inlet for Use With 1-1/2-inch or 2 inches (with coupler) Standpipe (ET115-002, G-175, DLA-G15) - Image 1](https://m.media-amazon.com/images/I/61OFq0Nl4lL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect water flow through air gap
*by T***S on March 11, 2025*

Perfect for our Aquasure Water Softener. No leaks and peace of mind during the regeneration process.

### ⭐⭐⭐⭐⭐ dose the job
*by C***N on June 28, 2025*

functionality

### ⭐⭐⭐⭐⭐ Quality product
*by F***1 on January 24, 2025*

I used the for the brine water flush discharge of the water softner system I installed. Product is exactly as described. Works great.

## Frequently Bought Together

- Water Filter/Softener Air Gap With 3/4-inch Female Threaded Inlet for Use With 1-1/2-inch or 2 inches (with coupler) Standpipe (ET115-002, G-175, DLA-G15)
- Water Filter/Softener Air Gap With 1/2-inch Female Thread Inlet for Use With 1-1/2-inch or 2 inches (with coupler) Standpipe (ET115-001, G-150, DLA-G15)
- Dual Air Gap for Water Softener and Reverse Osmosis with 5/8 or 1/2-inch and 3/8 or 1/4-inch inlets, 1-1/2 or 2-inch Standpipe (8500, GAP-CAP, AG130-001)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-04*