Radian RXT

By Diono


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Radian RXT

By Diono

$322.99 Regular Price: $379.99

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$322.99 Regular Price: $379.99

Availability: In Stock, Available to Ship Now
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This item is a final sale! We do not offer returns or exchanges on this item.

The Radian RXT Car Seats are designed with your child's security and safety as top priorities. Premium materials and thoughtful safety features like a steel alloy frame, aluminum reinforced side walls, energy absorbing EPS foam, and a five-point harness put your mind at ease as your little one stays safe and sound. The reinforced adjustable head support provides additional side impact protection.

Additional Information

Additional Information

  • Full steel frame and aluminium reinforced sides for unmatched safety
  • Comfortably seats rear-facing children from 5 - 45 lbs. (2.3 - 20.5 kg)
  • Comfortably seats forward-facing children from 20 - 80 lbs. (9 - 36 kg) in a 5-point harness
  • Unique SuperLATCH system that makes installation easy
  • Fits 3 across in most mid-size vehicles, folds flat for travel
  • FAA certified
  • Booster mode from 50 - 120 lbs (22.6 - 54.4 kg) or (40 - 57")
  • NCAP crash tested
  • Infant body support cushions and memory foam for added comfort
  • Energy absorbing EPS foam and side impact protection provides added safety
  • Safestop energy-absorbing harness
  • Rear-facing tether capability
  • Expandable sides and long seat bottom allow proper leg support
  • Low-sitting profile makes it easy for your child to board
  • Angled cup holder keeps a variety of drinks upright and within easy reach (sold seperately)
  • Cover is machine washable (without agitator) and dryable
  • Rubber bottom grips for no-slip installation
  • 10 year life


  • Open: 28.5 x 17 x 16" (72.3 x 43 x 40.6 cm)
  • Folded: 28.5 x 17 x 10" (72.3 x 43 x 25.4 cm)
  • Weight: 26.15 lbs. (11.86 kg)

Washing Instructions:

  • Hand wash or machine wash only in front loading machine. Line dry or tumble dry on low temperatures
Not For Sale No
Reservations Enabled Yes
Additional Content

Birth to Booster

The Radian RXT is a highly versatile car seat that could be the only seat you’ll ever need.

It’s built for strength and safety with a steel alloy frame, reinforced sidewalls, adjustable head support and patented SafeStop energy absorbing harness. EPS foam surrounds the child’s head and body to provide complete side impact protection.

It comfortably seats rear-facing children from 5-45 lbs, forward-facing children from 22-65 lbs in a 5-point harness, then converts to a booster for children up to 120 lbs.

The RXT is the only car seat rated for UAS use with a child up to 65 lbs. Sitting low on a vehicle seat for easy child boarding, it features memory foam padding and infant support pillows. A narrow base ensures the Radian RXT fits 3 across in a mid-size vehicle and offers more shoulder spaceExpandable sides and a longer seat bottom provide extra room and comfort for your growing child.

In addition to all this versatility, it folds flat for travel and storage, has a 10 year life and offers amazing safety, comfort and convenience your child won’t outgrow.





Heather Grey

Brand Diono
Number of Wheels No
Wheel Type No

Customer Reviews 8 Review(s)

1-8 of 153

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Van full of them
We currently have 3 of these seats and will get a fourth for our youngest. We love them so much. They allow for our family to fit comfortably in our van since we can do 3 across the back row. My kids love them and always seem comfortable.
Review by Deborah / (Posted on 2015-10-26)
Best seat ever!
Worth every penny! With baby number two on the way we will be purchasing a second Diono seat and passing the bucket seat. Love everything about the Radian Rxt.
Review by Christian / (Posted on 2015-10-19)
Like it
Love how slim these seats are and how you can fit 3 across the back seat of a car. The ease of use isn't as great as I thought, tightening the straps is ridiculously difficult. It's a steep price but I like how long it will last without having to buy anything else.
Review by Catherine / (Posted on 2015-10-19)
Great car seat. Snuggle Bugz staff were very informative and taking the seat out to the car to make sure it fit was awesome. I recommend watching installation videos and videos for tips and tricks. Very sturdy car seat.
Review by Sandy / (Posted on 2015-10-19)
This seat is amazing, it's ultimate in safety standard and fits nicely in a car without taking much space. My little one loves it!
Review by Caitlyn / (Posted on 2015-10-19)
Not for tall parents!!
On a girlfriends advice & after quite a bit of research I got rid of my 4yr old & 2yr olds car seats & bought them Radian RXT's. I loved the easy install, they're comfy & the seats move easily from my Grand Caravan to my husband's Optima.

Now that #3 is due any day we decided to install her new Radian RXT into the bucket seat behind the drivers side in my van. It doesn't fit. Or I should say it doesn't fit if my husband (6'3") or I (5'11") want to drive. So we tried it on the passengers side & o guess I could always sit in the back as a passenger. Thinking it's a Dodge issue (it usually is) & tried it in my hubby's Optima. It can't fit behind the driver, is a blind spot hazard in the center & my knees may as well be in the glove box with it on the passengers side.

In short I love my Dionos, but be warned if you're remotely above average in height, measure your cars seat position before buying.
Review by Amanda / (Posted on 2015-03-14)
Love this car seat!
We purchased two of these car seats in purple and they are awesome! With the up and coming arrival of baby number three we needed to be able to fit 3 car seats across the back seat! We will be happily purchasing seat number 3 in the next few months! These seats are wonderful quality and the safety features give peace of mind! Highly recommended!
Review by Heather / (Posted on 2015-01-08)
we love this car seat. only thing that's not great is the ratcheting strap to tighten the harness. still a great seat once you get used to it. our 2 year old loves his rear facing and just bought one for 2 month old.
Review by Carrie / (Posted on 2015-01-07)

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