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Diono Radian R120 Convertible Car Seat with Booster - Storm

Item # HN-SSK026

Dimensions & Specifications


Seat pad can be machine washed and dried

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Manufacturer Warranty

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  • 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.
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Customer Reviews


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

(based on 27 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.


  • Durable (3)
  • Safe (3)


    Best Uses

    • Toddler (3)

    Reviewed by 27 customers

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    Great seat

    By susie190

    from Tampa FL

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

    we love this seat I've had it since my 5 year old was two and a half and he's been in since then. He was rear facing all the way until four and a half and now is forward facing in it. He finds it very comfortable and was reluctant to let his little brother ride in it when we took a family trip and he used a different seat. He will outgrow the seat by height in a year or two and then he'll have to give it away to his little brother but he's not currently looking forward to it. I love the low sides so that its easier to get your child in and out of the seat, especially when rear facing. I also like that it doesn't have head wings that can get in the way with a taller child.


    We absolutely love our ...

    By Brittany

    from Undisclosed

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

    We absolutely love our Diono's! The R120 was our most recent Diono that we purchases (I have 4 kids currently and they are all in Diono seats!) Diono makes it possible for me to keep all my kids in their car seats for as long as possible not just because of their great weight ranges (even my almost 9 year old is still using his seat as a 5 point harness!) but since they are so slim, I'm actually able to keep all 4 car seats in my car.

    (1 of 1 customers found this review helpful)


    Great sest once you know the ins and outs

    By AthenaC

    from Saratoga springs, NY

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

    Overall I am happy with this seat, my 3 year old has been in it since 9 months and is still rf. Features I love: Rear-face to 45 lbs--this will get most kids to 3-4 years old easily Low profile--easy to get him in and out in my small vehicle Comfortable padding-- for long rides He is always comfortable Ability to rf tether Narrow so it allows 2 other seats or passengers in the back seat Features that could be improved: Angle rf--I do have the angle adjuster, and it is a must if you have seAt installed behind the passenger seat. Even with the aa, there is limited room for the passenger up front. I wish this seat would come with the angle adjuster built in, a la some of the other convertibles on the market. harness strap adjustment-- this harness has a ratchet system, so it takes some time to get the straps snug. I try not to loosen them, but my husband tends to loosen them when he takes my son out, so I find it to be a pain to constantly adjust them. No lock-offs--I'm still using latch but when I have to switch to seatbelt I am worried that it will take a while to get a good install without belt lock-offs. Most other seats in the market at this high level come with lock-offs. I would not trust others (grandma, etc) to properly install the seat without lock-offs, so we use a different brand convertible rf in grandma's car since it gets taken out a lot and she has a hard time using the latch system. Seat fabric--we have the red r120, and the fabric is easilly frayed With Velcro from sneakers. The fabric on the newer seats looks more durable. I would buy this seat again because I am confident in my ability to install properly and tighten the harness, and it will keep my lo safely rf for a while longer.



    By lhutson

    from florida

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

    we love this seat. It's heavy but it stays in my car so it's ok. My daughter is almost 2 and still happily rear facing. She loves the low sides bc, well honestly, she's nosey lol it's a super easy install. I wish i had gotten this seat in the beginning, would have saved a lot of headache.


    Good buy, fits multiple kids.

    By Liz Copeland

    from Atlanta, GA

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

    So, we needed an R120 for 3 across. For the money, it's a good deal, as the seat is both narrow enough for 3 across, rear faces for a long time, has the newborn insert, and has safety out the wazoo. I have had a wide variety of kids ride safely in this seat. It's great for carpool, because no matter what kid is coming, they usually fit. It's easy to install rear or forward facing. Never had a problem with the harness or switching it out for the next slot. Kids have always said it's comfy. The ugly: Imagine trying to haul two of these solo through the airport with 3 kids in tow. My car seat cover is fraying out, which I did not expect, as having owned 13 seats in 10 years, we've never had an issue with a seat cover fraying out. Heavy. Yup, but it braces! The top belting slot is a bit off, and makes it difficult to use as a belting booster.

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