---
product_id: 518613728
title: "Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black)"
brand: "retailandbulk"
price: "€ 53.18"
currency: EUR
in_stock: true
category: "Retail And Bulk"
url: https://www.desertcart.hr/products/518613728-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter
store_origin: HR
region: Croatia
---

# Supports up to 1.5 Amps current for reliable performance 3 Female RJ11 sockets for dual-line management Separates or combines 2 phone lines seamlessly Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black)

**Brand:** retailandbulk
**Price:** € 53.18
**Availability:** ✅ In Stock

## Summary

> 📞 Stay connected, split smart — the ultimate dual-line solution!

## Quick Answers

- **What is this?** Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black) by retailandbulk
- **How much does it cost?** € 53.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/518613728-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter)

## Best For

- retailandbulk enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Line Mastery:** Effortlessly split or merge two phone lines with a single adapter
- • **Robust & Reliable:** Durable black casing built for indoor and outdoor use, ensuring longevity
- • **Compact & Discreet:** Sleek round design fits seamlessly into any professional setup without clutter
- • **High-Speed Signal Integrity:** Maintains crystal-clear voice quality with minimal interference
- • **Universal RJ11 Compatibility:** Works flawlessly with all traditional landline phones using 6P4C connectors

## Overview

This Dual Telephone Line Separator/Combiner features three female RJ11 (6P4C) sockets designed to split a single 4-wire cable into two distinct phone lines or combine two lines into one. Supporting up to 1.5 Amps, it ensures reliable, high-speed signal transmission for traditional landline phones. Its durable black casing is suitable for both indoor and outdoor use, making it a versatile and essential tool for managing dual-line telephone setups.

## Description

Separates a 4-Wire 2-LINE telephone cable into LINE-1 and LINE-2

## Features

- 3 Female Sockets RJ11 (6P4C) Telephone Adapter Line Separator
- Single socket used to connect 4-Wire Cable with 2 Lines
- Double socket end separates Line-1 and Line-2
- Also works in reverse to combine Line 1 & 2 into a single 4-Wire cable
- Note: This is not a duplex adapter aka "telephone line splitter" such as item https://www.desertcart.com/dp/B088YVK6WQ

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08B6GJ5RD |
| Best Sellers Rank | 191,928 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,304 in Analogue & DECT Phones |
| Brand | RetailAndBulk |
| Cable Type | Telephone |
| Colour | Black |
| Compatible Devices | Telephone |
| Compatible Phone Models | Traditional Landline Phones |
| Connector Gender | Female |
| Connector Type | RJ11 |
| Customer Reviews | 4.2 4.2 out of 5 stars (52) |
| Indoor Outdoor Usage | Outdoor |
| Item Shape | Round |
| Manufacturer | RetailAndBulk |
| Manufacturer Part Number | RJ11-L1-L2 |
| Maximum Current | 1.5 Amps |
| Model Name | Phone Line Splitter Separator/Combiner |
| Model Number | RJ11-L1-L2 |
| Number of Items | 1 |
| Number of Pins | 4 |
| Other Special Features of the Product | High Speed, Durable |
| Recommended Uses For Product | 2-Line Phone |
| Specification Met | RoHS |
| UPC | 618020832893 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** RetailAndBulk
- **Cable type:** Telephone
- **Compatible devices:** Telephone
- **Connector type:** RJ11
- **Special feature:** High Speed, Durable

## Images

![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black) - Image 1](https://m.media-amazon.com/images/I/31P8oCtCjsL.jpg)
![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black) - Image 2](https://m.media-amazon.com/images/I/41QIMgXJTUL.jpg)
![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black) - Image 3](https://m.media-amazon.com/images/I/41q4LjybjbL.jpg)
![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black) - Image 4](https://m.media-amazon.com/images/I/41AJgj1TfWL.jpg)
![Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter (Black) - Image 5](https://m.media-amazon.com/images/I/41L9xeQ3pML.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: I need a bulk order of telephone cords quickly. Should I choose Amazon Prime or Ships from RetailAndBulk?**
A: Ships from RetailAndBulk is fastest for bulk orders. We ship all telephone cables in one shipment the next business day from our NY workshop where we make them. Prime may need to transfer stock to one warehouse first or send multiple packages.

**Q: Are these telephone splitters compatible with all landline phones such as AT&T, Panasonic, and cordless phones?**
A: Yes, but note — this is not a phone jack splitter that simply splits a single-line phone service into two jacks for using two phones on the same line. This adapter splits a 4-conductor RJ11 2-line cable into separate jacks for Line 1 and Line 2.

**Q: What is the difference between this RJ11 Line Separator/Combiner and a standard 2-way phone jack splitter?**
A: This RJ11 Line Separator/Combiner is designed for two-line phone service, where a single 4-conductor RJ11 cable carries Line 1 and Line 2. It separates those lines into individual single-line jacks, each with its own phone number.

**Q: Does this phone line splitter come with a phone cord?**
A: This listing is for the adapter only. We also offer a combo option [adapter + custom size phone cord]. Scroll to the top of the page to select it — there you can choose a phone cord length from 2 inches to 15 ft along with the phone line splitter.

**Q: Do you offer bulk discounts on large orders?**
A: Yes, if you have an Amazon Business account, you will see it when adding large quantity to cart. We’ve served many large-scale projects, including hotels, retail chains, new constructions, schools, hospitals, TV stations, and fire departments.

## Frequently Bought Together

- RetailAndBulk Dual Telephone Line Separator/Combiner 3-Female RJ11 Jack Adapter for 2 Line Phone Cable (Black, 2 Line Phone Splitter)
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**Shop now:** [https://www.desertcart.hr/products/518613728-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter](https://www.desertcart.hr/products/518613728-dual-telephone-line-separator-combiner-3-female-rj11-jack-adapter)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-11-13*