---
product_id: 602497586
title: "DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster"
brand: "diono"
price: "A$2172"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/602497586-dionoradian-3rxt-special-edition-slim-fit-3-across-all-in
store_origin: AU
region: Australia
---

# Slim-fit design fits 3 across without compromise 3-in-1 convertible modes for 10 years of use Automotive-grade steel core for ultimate safety DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster

**Brand:** diono
**Price:** A$2172
**Availability:** ✅ In Stock

## Summary

> 🚗 Safety Meets Sleek: The 3-Across Gamechanger for Modern Families

## Quick Answers

- **What is this?** DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster by diono
- **How much does it cost?** A$2172 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/602497586-dionoradian-3rxt-special-edition-slim-fit-3-across-all-in)

## Best For

- diono enthusiasts

## Why This Product

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

## Key Features

- • **Rock-Solid Safety:** Mechanically engineered steel core and anti-rebound bar reduce rotation and enhance crash protection.
- • **Space-Savvy Slim Fit:** Innovative slim design lets you fit 3 car seats across, perfect for busy families.
- • **Built to Last a Decade:** Grows with your child from 5 to 120 lbs, maximizing value and safety.
- • **Triple Mode Versatility:** Seamlessly converts from rear-facing to forward-facing to booster, adapting to every stage.
- • **One-Hand Adjustable Comfort:** 12-position headrest with easy one-handed adjustment for personalized support.

## Overview

The Diono Radian 3RXT Special Edition is a premium all-in-one convertible car seat engineered with automotive-grade steel for superior safety. Its slim-fit design allows three seats to fit side-by-side, making it ideal for families on the go. With rear-facing, forward-facing, and booster modes, plus a 12-position adjustable headrest, it offers up to 10 years of adaptable comfort and protection for children weighing 5 to 120 pounds.

## Description

DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster

## Features

- Radian 3RX Car Seat: Equipped with SuperLatch, cupholder, an adjustable headrest, and head and body support grows with your child for up to 10 years of use with a weight limit of 5 to 120 pounds
- Technology: Allows for newborn rear-facing, forward-facing harness, and high-back booster mode; Designed for rear-facing travel from 5 to 65 pounds; Includes an anti-rebound bar to reduce rotation
- Mechanically Engineered Steel Core: Made from automotive-grade steel; Keeps you secure during travel with Radian slim-fit design for a 3-across option to not compromise a child's comfort and safety
- Adjustable Headrest: One-handed easy-adjust, 12-position headrest for a personalized and ultra-comfortable fit; Ensures maximum support and safety for you and your loved ones

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 40.64 x 43.18 x 72.39 cm |
| Manufacturer reference | 50031-US-01 |
| Minimum weight recommendation | 2.27 kg |
| Maximum weight recommendation | 65 Pounds, 120 Pounds, 50 Pounds |
| Material Type | Alloy Steel |
| Orientation | Forward Facing, Rear Facing |
| Harness type | 5-Point |

## Product Details

- **Brand:** diono
- **Installation type:** Latch
- **Material:** Alloy Steel
- **Orientation:** Forward Facing, Rear Facing
- **Minimum weight recommendation:** 29.48 kg, 54.43 kg, 50 Pounds

## Images

![DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster - Image 1](https://m.media-amazon.com/images/I/71RzJZq4FWL.jpg)
![DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster - Image 2](https://m.media-amazon.com/images/I/61k46yAZ5yL.jpg)
![DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster - Image 3](https://m.media-amazon.com/images/I/71BovPVRL8L.jpg)
![DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster - Image 4](https://m.media-amazon.com/images/I/71W2E-FnXxL.jpg)
![DionoRadian 3RXT Special Edition Slim Fit 3 Across All-in-One Convertible Car Seat, Rear-Facing, Forward-Facing and High-Back Booster, Gray Oyster - Image 5](https://m.media-amazon.com/images/I/71n4ilVcWqL.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.com.au/products/602497586-dionoradian-3rxt-special-edition-slim-fit-3-across-all-in](https://www.desertcart.com.au/products/602497586-dionoradian-3rxt-special-edition-slim-fit-3-across-all-in)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-12*