---
product_id: 413028859
title: "1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12)"
brand: "air gap international"
price: "€ 369.95"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/413028859-1-4-quick-connect-push-in-inlet-reverse-osmosis-drain
store_origin: NL
region: Netherlands
---

# Silent, gurgle-free operation 1/4-inch push-in quick connect Tool-free, no-drill installation 1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12)

**Brand:** air gap international
**Price:** € 369.95
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect smart, live clean—upgrade your RO drain game!

## Quick Answers

- **What is this?** 1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12) by air gap international
- **How much does it cost?** € 369.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/413028859-1-4-quick-connect-push-in-inlet-reverse-osmosis-drain)

## 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

- • **No-Drill Installation:** Protect your pipes and install in minutes without any drilling.
- • **Certified Peace of Mind:** UPC & IPC listed, ASTM F 409 compliant for guaranteed safety and code compliance.
- • **Leak-Proof Locking Clip:** Secure your connection with a locking clip that prevents accidental disconnections.
- • **Whisper-Quiet Drain Line:** Say goodbye to annoying gurgles—enjoy peaceful water filtration.
- • **Effortless 1/4" Quick Connect:** Snap in your RO tubing with zero hassle and zero leaks.

## Overview

The ET112-001 is a 1/4-inch push-in quick connect drain line adapter designed for reverse osmosis systems. It enables easy, tool-free installation without drilling, eliminates gurgling noises, and features a locking clip to prevent leaks. Certified to meet UPC, IPC, and ASTM F 409 standards, it ensures safe, reliable, and code-compliant RO drain connections for both residential and commercial use.

## Description

The ET112-001 is a reverse osmosis water filter drain line adapter. It is designed to connect discharge 1/4-inch tubing from a RO filter to the drain. The ET112-001 is connected to the sink drainpipe to receive the reject water from an under-counter reverse osmosis appliance or a distillation system. The installation provides a reliable and trouble-free connection of the 1/4-inch discharge water tubing to the drain line. The ET112-001 is designed for residential and commercial use. The ET112-001 is the preferred way to connect RO system to the drain line. The ET112-001 eliminates gurgling sound and provides a safe and effective way to comply with all local plumbing codes. The ET112-001 drain adapter is UPC and IPC listed.

## Features

- ❤ SIMPLE INSTALLATION: The ET112-001 is designed for connecting discharge 1/4-inch tubing from a reverse osmosis (RO) filter to the drain. Its 3-way repair tee directly connects to the sink drainpipe. Its drain line adapter with a 1/4-inch push-in connector accommodates a 1/4-inch OD RO poly tubing. The ET112-001 resists clogging for lifelong operation. The recommended installation of the ET112-001 is vertical.
- ❤ DRAIN LINE CONNECTION: The ET112-001 enables the connection of the RO water filter to the drain. Installing the ET112-001 is simple as does not require drilling into wet pipes. It also comes with all the fittings and instructions needed for installation.
- ❤ QUIET OPERATION: The ET112-001 eliminates gurgling noise from RO system.
- ❤ DRY OPERATION: The ET112-001 has a locking clip for 1/4-inch quick connect to prevent leaks and accidental disconnection of the tube. The locking clip is fitted around the 1/4-inch quick connect push-in connector.
- ❤ CERTIFICATION: The ET112-001 is legal to install in any state. It is UPC (Uniform Plumbing Code) and IPC (International Plumbing Code) listed, and ASTM F 409 compliant. These certifications assure that ET112-001 is safe to use. The testing is conducted for every manufactured lot to ensure consistent performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 1/4 inch |
| Material | Plastic |
| Brand | AIR GAP INTERNATIONAL |
| Colour | White |
| Item dimensions L x W x H | 5.1 x 3.8 x 10.2 Centimeters |
| Connector Type | Adapter |
| Thread Size | 0.25 inch |
| Exterior Finish | Brass |
| Thread Type | NPT |
| Number of Pieces | 1 |
| Manufacturer | AIR GAP INTERNATIONAL |
| UPC | 854628005646 |
| Item model number | ET112-001 |
| Product Dimensions | 5.08 x 3.81 x 10.16 cm; 82 g |
| ASIN | B07B43RD9L |

## Product Details

- **Size:** 1/4 inch
- **Material:** Plastic
- **Brand:** AIR GAP INTERNATIONAL
- **Colour:** White
- **Item dimensions L x W x H:** 5.1 x 3.8 x 10.2 Centimeters
- **Connector Type:** Adapter
- **Thread Size:** 0.25 inch
- **Exterior Finish:** Brass
- **Thread Type:** NPT
- **Number of Pieces:** 1

## Images

![1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12) - Image 1](https://m.media-amazon.com/images/I/618wlfPaJDL.jpg)
![1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12) - Image 2](https://m.media-amazon.com/images/I/613wyuVQDlL.jpg)
![1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12) - Image 3](https://m.media-amazon.com/images/I/71agiZAiijL.jpg)
![1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12) - Image 4](https://m.media-amazon.com/images/I/71gr3AxIMgL.jpg)
![1/4″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter (ET112-001, 12-25QC, DLA-12) - Image 5](https://m.media-amazon.com/images/I/71sOexbhyML.jpg)

## Questions & Answers

**Q: Can this adapter be installed horizontally near the outlet of the garbage disposal?**
A: No, It probably should not be installed this way.  Installing vertically above the p-trap is the best option.

**Q: Does this item hook up to 1 1/2” pipe?**
A: it does not fit a PVC or ABS 1 1/2" pipe you will need to get the 1 1/2" sink kit cut those and modify it that way.

**Q: Does this item have a check valve to prevent backflow?**
A: no.

## Frequently Bought Together

- Drain Line Adapter (DLA) with 1/4-inch Quick Connect Fitting for Reverse Osmosis filter (ET112-001, 12-25QC, DLA-12)
- Drain Line Adapter (DLA) With 1/4-inch Quick Connect Fitting for a Water Filter and 7/8-inch Fitting for a Dishwasher (ET116-001, D-25QC, DLA-D)
- Drain Line Adapter (DLA) with 1/4-inch Quick Connect Fitting (ET109-001, 9-25QC, DLA-9)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/413028859-1-4-quick-connect-push-in-inlet-reverse-osmosis-drain](https://www.desertcart.nl/products/413028859-1-4-quick-connect-push-in-inlet-reverse-osmosis-drain)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-09*