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Diono Radian R120 Convertible Car Seat with Booster - Storm

Item # HN-SSK026
List Price: $309.99
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Dimensions & Specifications

26.4 lbs.
Weight Capacity
5-100 lbs.
Light Grey


Seat pad can be machine washed and dried

Product Guarantee

Manufacturer Warranty

Return & Exchange Policy

  • Frame is made of steel alloy and aluminum reinforced sides
  • Gray micro-mesh velour and air mesh with velour trim
  • Comes with energy absorbing EPS foam panels and booster
  • 5 shoulder, 3 buckle, and 2 recline positions for custom fit
  • Dimensions: 17L x 16W x 28.5H in.
Full Description
Guarantee & Returns
Customer Reviews


by PowerReviews
Diono Radian R120 Convertible Car Seat with Booster - Storm

(based on 12 reviews)

Ratings Distribution

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  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 12 customers

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By Sunshine

from Edmonton, AB, Canada

Comments about Diono Radian R120 Convertible Car Seat with Booster - Storm:

We bought a couple of these. less than 6 months later we rolled our van, and both our kids were scared but completely fine. They were replaced by Diono (though the replacements got lost for several months). We were supposed to get coloured ones on the replacements, but go black ones instead. On the replacements, however, the velcro that attaches the chest buckle has been torn off by our kids within a couple months, so we need to get those replaced. Also, it fits our children (tall) for longer, and can fit 3 across the back seat of our small toyota echo.


Very safe & fits well three across

By Amy29

from Minneapolis, MN, United States

Comments about Diono Radian R120 Convertible Car Seat with Booster - Storm:

I bought this a month ago & am glad I did, this seat is very sturdy & will last a long time. I bought this as I have 3 kids under 5. My 4.5 year old sits in the diono r100 5 point harness booster, the 1 month old baby is in the middle in a chicco key fit 30 infant seat with base, and my 19 month old is in this diono r120 rear facing. All 3 seats fit across the rear seats of my subaru outback. I highly recommend the diono r120.

(1 of 1 customers found this review helpful)


Best and safest car seat

By MontrealKid

from Montreal

Comments about Diono Radian R120 Convertible Car Seat with Booster - Storm:

Got this model as a replacement for my other car seat which was shredding its tightening strap. This seat feels very solid and I trust it more than any other seat I have seen or used. The kids are very comfortable. The straps are large and do not dig into the child’s shoulders. The wings are useless, my kids fall asleep all the time and their heads stay put. The straps are also very easy to tighten and loosen. I bought a second one for my second child. No regrets. I no longer trust any other car seats for the safety of my children.


Fits Our Needs

By RorasMommy

from NS, Canada

Comments about Diono Radian R120 Convertible Car Seat with Booster - Storm:

This seat was just what we were looking for. My daughter should be able to rear face comfortably until she turns 4. She is so much safer that way. The low sides give her the option to rest her legs over the edges. It has lots of leg room for rear facing compared to some other brand options. Easy to get a tight install. Easy to adjust strap height. Ratcheting harness adjuster is a bit of a pain but definitely workable. Straps are comfortable with or without the strap covers. Cup holder does not stay in place well. It would be improved if it had more of a "click" when pushed in. Seat is very heavy. I would not want to move this seat frequently. If you only move your seat on occasion it isn't bad. The closed belt path would be tricky to put the belt through if you had larger hands but I have heard of people tipping the seat to the side and dropping the belt through. I wish I had known more when I originally bought my daughter her convertible car seat that she outgrew rear facing by height before 2 years. I could have saved myself some money buy buying this one first. Many seats on the market advertise high weight limits but neglect to tell you upfront how short their height limits are. The Radian has generous weight and height limits.

(3 of 3 customers found this review helpful)


We bought this carseat ...

By pinksnow

from Quebec, Canada

Comments about Diono Radian R120 Convertible Car Seat with Booster - Storm:

We bought this carseat for our 10 month old. My husband and I are both quite tall and managed to fit the seat rear-facing in the middle backseat of my Elantra without the angle adjuster, it's a tight fit, but as soon as we can use the angle adjuster it will give us quite a lot more room! We can easily fit other carseats and boosters on either side of the seat for any visiting and future children. The ease of the latch system also gets a thumbs up! The only thing that is difficult is that it is quite heavy making it hard to move from one car to the next.

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