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radian® 3R

All-in-one convertible car seat

radian® 3R

The original All-in-One convertible car seat designed to fit 3 across and with our famous steel core inside for optimum safety. Now rear facing for even longer (up to 50 lb/ 22.7 kg) and suitable from birth up to 120 lb/ 54 kg, expect 10 years of safety from just one car seat.

$199.99

 
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What makes radian® 3R great?

10 YEARS ONE CAR SEAT

With 4 ways to travel from birth to booster, the radian® 3R adapts as your child grows to offer a custom fit from birth up to 120 lb/ 54 kg

THE ORIGINAL 3 ACROSS

Built with our famous radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.

REAR-FACING FOR LONGER

Designed and engineered to keep your child rear facing even longer up to 50 lb / 22.7 kg (approx 4 years old).

STEEL CORE
Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.
EASY REMOVE COVERS
Radian 3R features easy remove covers. So when the next journey gets messy, quickly remove the covers to machine wash and dry.
PRODUCT SPECS

Rear-facing

5-50 lbs / 2.3-22.7 kg 

Forward-facing

22-65 lbs / 10-29.5 kg 

Booster mode

40-120 lbs / 18-54 kg 

Seated torso height

7.5-16.5″ / 19-42 cm 

Overall maximum height

up to 57″ / 144.8 cm 

With 4 ways to travel from birth to booster, the radian® 3R adapts as your child grows to offer a custom fit from birth up to 120 lb / 54 kg.

Built with our famous radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.

With extended rear-facing from birth up to 50 lb / 22.7 kg to keep your child in the safest travel position for as long as possible.

With 4 ways to travel from birth to booster, the radian® 3R adapts as your child grows to offer a custom fit from birth up to 120 lb / 54 kg.

Built with our famous radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.

With extended rear-facing from birth up to 50 lb / 22.7 kg to keep your child in the safest travel position for as long as possible.

Key product features and benefits

Steel Core
Mechanically engineered, reinforced steel core. Made from automotive grade high strength steel. What better way to protect your child?

Now suitable up to 120 lb
The 2020 radian® 3R is now suitable from birth up to 120 lb in high back booster mode. 

Safety from all angles with the side impact protection….
Aluminium reinforced sides and thick energy absorbing foam distributes crash forces.

Easy remove covers
Radian 3R features easy remove covers. So when the next journey gets messy, easily remove to machine wash.

SuperLATCH™ installation
Our SuperLATCH™ system makes installation easy and super secure. An audible click lets you know when connectors are locked in and safe.

Travel ready
Radian car seats are super portable and fold flat for easy travel. They are also FAA Approved and certified for use on aircraft!

XL Anti-slip Harness Pads
Memory foam harness pads with anti-slip backing for added safety and comfort. 

Memory foam comfort
The radian® 3R features memory foam padding in the seat base for optimum child comfort.

what’s the diono.com difference? 

Additional 2 year warranty*

Receive an additional 2-years warranty on all car seats and strollers purchased from diono.com. *T&C’s apply

FREE Shipping on orders over $200*

Diono proudly offers free shipping on orders over $200. *T&C’s apply

Join the Very Important Passenger Club

Unlock exclusive news, offers and discounts on all diono.com products.

1-2-1 Virtual Car Seat Fitting

Book a 1-2-1 virtual car seat fitting with a member of our car seat safety team

Questions?

can 3R fit-across in my car?

Most likely, yes, as long as you have 51” (129.6cm) in the back row from vehicle armrest to armrest. It may be necessary to install all three using the vehicle seat belt system.

can the infant head and body supports be used on the 3R?

Yes, they can be used including on all the Rainier and Radian line convertible car seats.

are the harness pads and buckle pads required on my seat?

Yes, they are required while your child is sitting in forward-facing. They are optional but recommended while sitting rear-facing. The center buckle pad is required at all times.

what are the requirements to use the seat in booster mode?

The child must weight at least 40lbs and be at least 40 inches tall and shoulders reach the 4th harness slot.

does a cup holder come with the car seat?

It is not included with the radian 3R but can be purchased separately on our website.