![Radian® 3QX all-in-one convertible car seat [Black Jet]](https://cdn11.bigcommerce.com/s-nnd2r2nrxo/images/stencil/350x350/products/245/4796/3QX_Black__79415.1712242449.png?c=1 "Radian® 3QX all-in-one convertible car seat [Black Jet]")
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Radian® 3QX SafePlus®
$399.99
$239.99
3-stage newborn safety & 3-across: the advanced all-in-one convertible
Radian® SafePlus® Series Rear-facing Base
Radian® SafePlus® Series Rear-facing Base is only compatible with the following Radian® SafePlus® All-in-One convertible car seat models:
- Radian® 3QX SafePlus®
- Radian® 3QXT® SafePlus®
- Radian® 3QXT® FirstClass™ SafePlus®
- Radian® 3R® SafePlus®
- Radian® 3RXT® SafePlus®
Product Specs
Warranty Information
12 months
Plays well with
![Radian® 3R® SafePlus® all-in-one convertible car seat [Pink Cotton Candy]](https://cdn11.bigcommerce.com/s-nnd2r2nrxo/images/stencil/350x350/products/449/10866/50635-NA-01__90709.1728679977.png?c=1 "Radian® 3R® SafePlus® all-in-one convertible car seat [Pink Cotton Candy]")
Radian® 3R® SafePlus®
$259.99
The original 3 Across All-In-One™ convertible car seat with SafePlus® engineering
![Radian® 3RXT® SafePlus® all-in-one convertible car seat [Gray Slate]](https://cdn11.bigcommerce.com/s-nnd2r2nrxo/images/stencil/350x350/products/352/8361/50101_Cutout__03102.1725294038.png?c=1 "Radian® 3RXT® SafePlus® all-in-one convertible car seat [Gray Slate]")
Radian® 3RXT® SafePlus®
$299.99
Our best selling 3 Across All-In-One™ convertible car seat with SafePlus® engineering
![New Diono Radian® 3QXT® FirstClass™ SafePlus® All in One Luxury Convertible Car Seat, Suitable From Birth to Booster [Black Jet]](https://cdn11.bigcommerce.com/s-nnd2r2nrxo/images/stencil/350x350/products/343/5203/Radian-3QXT_-Transparent-Image__80289.1725293852.png?c=1 "New Diono Radian® 3QXT® FirstClass™ SafePlus® All in One Luxury Convertible Car Seat, Suitable From Birth to Booster [Black Jet]")
Radian® 3QXT® FirstClass™ SafePlus®
$499.99
FirstClass™ Comfort & Ultimate 3-across SafePlus® Engineering
![Angle Adjuster Car Seat Leveler, Car Seat Wedge Cushion, Provides More Legroom For Rear-Facing Car Seats [Black]](https://cdn11.bigcommerce.com/s-nnd2r2nrxo/images/stencil/350x350/products/149/2473/Angle_Adjuster__46858.1611138507.png?c=1 "Angle Adjuster Car Seat Leveler, Car Seat Wedge Cushion, Provides More Legroom For Rear-Facing Car Seats [Black]")
Radian® Rear-Facing Angle Adjuster
$24.99
Elevates All-in-One convertible car seats to a more upright position
2020 Radian® 3QXT® FirstClass™ SafePlus® - Main Cover
$179.99
Refresh your Radian® 3QXT® FirstClass™ SafePlus®
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