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Item # 16910

Diono Radian RXT Convertible + Booster Car Seat - Plum

Share Diono Radian RXT Convertible + Booster Car Seat - Plum

Was $299.99
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Coordinating Items
Diono Radian Carry Strap
Diono Car Seat Travel Bag
Include the Diono Radian RXT Convertible + Booster Car Seat - Plum

Item # 16910


Rear-facing Capacity: 5-45 lbs
Forward-facing Capacity: 20-120 lbs
Seat Weight: 26.15 lbs
Seat Dimensions:28.5 H x 17 W x 16 D

What's Included:

Cup holder

This product will:


Fit 3 Across

Fold for storage and travel

Machine wash and dry

Steel Frame

Full steel frame and aluminum reinforced sides for unmatched safety.

Fit 3 Across

Comfortably fits 3 across in most mid-size vehicles.

Fold & Go

Folds flat for storage and travel - you can even take it on the go with handy carry straps (sold separately).

FAA Certified

Travel-friendly and FAA certified for aircraft use!

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.


  • Full steel frame and aluminum reinforced sides for unmatched safety
  • Comfortably seats rear-facing children from 5-45 lbs, forward-facing children from 20-80 lbs in a 5-point harness, then converts to a booster for children up to 120 lbs.
  • Unique SuperLATCH system that makes installation easy
  • It also fits 3 across in a mid-size vehicle, folds flat for travel and is FAA certified
  • Booster mode from 50 -120 lbs (40 to 57 inches)
  • NCAP crash tested, the industry benchmark for verifying child seat performance in severe accident conditions
  • 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
  • Additional forward-facing recline position to accommodate different types of contoured vehicle seats, 12-position adjustable headrest, 5 shoulder and 3 buckle positions deliver a comfortable ride.
  • Rear-facing tether capability
  • LATCH installation up to 80 lbs
  • 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
  • Cover is machine washable and dryable
  • Rubber bottom grips for no-slip installation
  • 10 year life


Open 28.5" H x 17" W x 16" D
Folded 28.5" H x 17" W x 10" D
Weight 24 lbs
CARE Hand wash or machine wash only in front loading machine. Line dry or tumble dry on low temperature.
  • Rear-facing: 5 - 45 lbs
  • Forward-facing: 20 - 80 lbs (and up to 57") in a 5-point harness
  • Booster to 120 lbs
  • Steel alloy frame and aluminum reinforced sides
  • Safestop® energy-absorbing harness system
  • Adjustable head support, reinforced for complete side impact safety
  • Energy-absorbing EPS foam panels on all sides
  • Rear-facing tether capability
  • LATCH installation up to 80 lb child
  • Infant body support cushions
  • Memory foam padding for superior comfort
  • 5 shoulder and 3 buckle positions for custom fit
  • Expandable sides and longer seat bottom for leg support and comfort
  • 12 height positions for adjustable head support
  • 2 recline positions in forward-facing mode
  • Sits low on vehicle seat for easy child boarding
  • Fits 3 across in a mid-size vehicle and offers more shoulder space
  • Add up to 4 cup holders (1 included)
  • Folds flat for travel and storage
  • Rubber bottom grips for no-slip installation
  • 10 year life
  • Care: Machine wash and dry

    Product Dimensions:
  • Open: 28.5" H x 17" W x 16" D
  • Folded: 28.5" H x 17" W x 10" D
  • Weight: 24 lbs

By Mrs G
Seattle, WA
Best fit for growing family
February 15, 2017
I wish I'd bought this with #3, instead of waiting until we had four kids in the car!!! This is the best seat to fit side-by-side, and I'm so glad the rear-facing lasts for so long! The instructions are also very thorough and go through everything you need to know about setting up the car seat. It is a very heavy, very durable seat and the only one I've seen that lasts for 10 years.
Best Uses3+ kids, side-by-side, extended rear-facing, large families
By Lena
Stewardson IL
great carseat
February 15, 2017
We bought this car seat for our two year old it's great quality I honestly thought it was pretty easy to install we love it so much that we replaced our 4 year olds car seat with a diono also!
By Marcey
Pittsburgh, PA
Diono DRadian RXT Convertible Booster Car Seat
February 13, 2017
I purchased this car seat for my granddaughter who is 18 months old. The seat is a little heavy to lift but built sturdy. She fits in the seat comfortably and is easier to get her in with the low sides.
ConsI have a Nissan truck and the car seat need the angle adjuster so that my front seats could go back for someone to sit in the front seat.
Boston, MA
Great as expected
February 9, 2017
This is our *THIRD* Diono Radian RXT car seat. Just as good as expected - solid, sturdy, easy to use. The car seat is on the expensive side compared to many others on the market. We ordered this one after we had a cheaper car seat for one of our cars. The higher price is well worth it when it comes to saving the daily struggle with buckles and straps (meaning screaming kid).
By Ashley
Wilton ct
February 8, 2017
Easy to install. Doesn't take up a lot of space. My child can easily get in and out of it, he is small for his size and is 19months old. This is my second one for the second vehicle. I plan to get more for the next arrival.
By Ellen Schwarz
Coupeville, Washington
Great seat
February 4, 2017
Super safe. Soft and comfortable for little ones and long lasting.
By Edna
San Antonio, TX
Great car seat
February 4, 2017
Very sturdy and well made. Not the easiest to install but I think this car seat is worth the effort. Love that it has an all steel frame.
By Kathleen
Kelso, Washington
Great Quality worth the price!
January 29, 2017
This seat is the highest quality seat I have purchased in my 7 years of parenting three children. Best quality and at a great price on sale at
By Henry
Needed to fit 3 kids in Prius
January 22, 2017
I purchased two Radian RXT car seats as I have twins (18 mos) and a 4 year old. I also drive a Toyota Prius (Gen 3) and did not want to have to trade in my car to fit all 3 kids. The Diono Radian RXT fits the bill perfectly. Currently I have a Rainer in the middle forward facing and the twins in the Radian RXTs rear facing. Works and looks great!
ProsGreat colors - both the black scarlet and black cobolt look great.
By Angel
Walhalla, South Carolina
Love it!
January 19, 2017
I absolutely LOVE this car seat for my child! I love that she can grow with it. I also love that it not only fits into my Optima, but my boyfriend's 2 door Jeep Wrangler as well!
By Tonia
Green Bay, Wisconsin
Great seat, great price!
January 16, 2017
We needed a slimmer seat to fit three across in our vehicle and are very happy with our purchase. Very well made seat, fast shipping and a great price at Albee Baby!
By Alex Leung
San Francisco, CA
Sturdy convertible!
January 12, 2017
We love this Diono. The RXT is just the right car seat for my 2 year old in the car I drive to work in--a 2015 Subaru XV Crosstrek. I have to use the Angle adjuster to get it to fit better rear-facing, backseat passenger side, so as to give more legroom to front passenger. I love that the RXT is narrow yet great for side impact protection.
By Jessie
I'm not hitting my kid's head anymore!
December 28, 2016
I bought this seat because my other one had too deep of sides, and I kept hitting my daughter's head on the door frame getting her in and out. This seat has next to no sides on it, and it's great! The padding is ok, not too cushy, but not too bare. She's comfortable in it. The straps seem wider, which I like. Fits great in the middle seat, but not so good on either side (the back is pretty tall), but if you keep your seat a bit closer to the wheel, you can do it! The only really negatives I have are it is really difficult to adjust everything. Adjusing the straps up and down requires removing them. Adjusting the crotch buckle requires small hands. Installing is super easy. Gets really tight without too much effort. Overall, I'm very glad I got it.
By Kalle Ryynanen
Redmond, WA
Nice chair, possible to fit 3 in a row
December 21, 2016
This was one of three chairs we bought here because we needed to fit 3 different types of childrens car seats in one row. This one was for our 3 years old and I really liked the quality. Not so tricky to assemble as said in some comments you can find from the internet.
By Rhonda
Naperville IL
Highly recommended
November 9, 2016
We purchased this for my 6 year old to use as a forward facing 5 harness booster so we could fit his baby sister in the middle of the back seat next to him. The high back booster we already had fit ok but didn't allow him enough room to buckle his seat belt. After much research we decided to invest in this seat with plans of transitioning baby into it when she outgrows her infant seat. My 6 year old LOVES this seat, says it's super comfy and he loves tha harness straps. Well worth the $$, excellent quality, small enough to fit multiple across the back seat if needed.
By Deborah
Hesperia, Ca.
Exactly what we needed
November 7, 2016
We were looking for a durable combo seat for our 3 year old. Our third kiddo is on the way and we needed something to accommodate fitting 3 seats in a row in our Durango.(next to a highback booster and an infant carseat) This works great! Our daughter loves it. It sits lower than most carseats which is a bonus and doesn't have the width of a boat! The only reason I'm not giving a 5 star, is if someone is looking for something lightweight, this is not it. But I'd rather have safety over lightweight imo.
ProsLess width than most carseats Easy for child to get in and out
Best UsesMultiple seats in a row For older toddlers
By Christi
Great, safe seat
November 4, 2016
Very pleased with the safety ratings, ability to use with infants through a high back booster and space saving design. The onlyreason I'm not awarding five stars is it's somewhat difficult to tighten straps fully. I need to use my entire body weight to tug it repeatedly in order to tighten the harness appropriately for my son.
By OkDesignerMom
We came back for another
November 4, 2016
We purchased a Diono RadianRXT for our middle child and liked it so much that we came back when it was time for our youngest to get a new seat. The slim profile is fantastic for fitting in any seat you want (2nd or 3rd row). The seat is can feel the sturdiness of the steel frame. The detachable drink cup holder has 6 different places it can be located for maximum flexibility. The fabric on this version of the seat is much softer (but still durable) than our older RXT. My kids love these seats...never any complaints. If you use a coupon code here at Albee it makes it more affordable and the service is great!
ProsSteel frame, highly adjustable, narrow footprint, comfort, softness, ease of use.
ConsHeavy if you will be carrying it at all
Best Uses3 seats across, narrow seats, captains chairs,
By Brandy
LYNNWOOD, Washington
Love this seat
November 3, 2016
I was a little skeptical about getting this car seat. I drove 45 minutes just to check it out at a "local" retailer before purchasing online. But now that I have it, I love it. It's so easy to lift my toddler into and out of it because the sides are low. Very easy to buckle as well. I only give it 4 stars because it's hard to pull the straps tight to snug her in well. The color is beautiful as well. We purchased one in scarlet and one in plum.
By Lori
Fullerton, CA
Everything I expected it to be
October 16, 2016
The seat was delivered before the expected day. There was a bit more assembling than I expected but I finished it all and read the entire manual and had the seat installed in the car in just over an hour. The install was easy. My three year old rides in the seat rear facing and he has said it is comfortable. I am super pleased about how narrow the base is which allows for more room on the seat for someone riding between the two car seats.
By Jerilyn
New Jersey
terrific carseat!
October 13, 2016
I bought this car seat after my son recommended it for my grand-daughter. I went to a hospital to have it properly installed and they were very impressed. I have only used it twice but it was very easy to get her in and out of it and I feel comfortable knowing that it is a very safe seat.
By Shannon
Boston, MA
Strap tightening is grandmother friendly!
October 6, 2016
We have a Radian RXT in our car and we love it for the ability to fit 'three across'. We just purchased one for my mother, as she has been struggling to tighten the straps of almost all other car seats (arthritis in her hands). This has left us concerned that the straps might not be as tight as they should be for our child. What is nice about this seat: the chest clip is super easy to release and for tightening, it 'ratchets' rather than a single pull. It isn't dependent upon how much force you apply (when in fact if you apply too strong of a pull, you don't get anywhere). Instead, you do a series of small tugs, to get it to ratchet tightly. She LOVES it and we all feel safer because of it.
By Jorge
San Diego
Excellent child seat
October 5, 2016
It is an excellent child seat, feels solid and sturdy, it's narrow so it leaves space for other rear passengers.
Best UsesIt's narrow but still comfortable
By Corine
Hibbing, Minnesota
Perfect for smaller vehicles
September 29, 2016
Exactly what I expected. I did tons of research before this purchase and its exactly what I wanted, the quality is excellent, it arrived the day it was supposed to, and I had it installed with fit check in under 5 minutes. I know my baby is very safe in this seat and I won't have to buy another one for him ever! It is heavy but I knew that before buying. I'd recommend the angle adjuster from diono for rear facing install if you have a small vehicle, I have a Ford Escape and needed it for my husband to be able to fit in the passenger seat comfortably. This was one of the only car seats that would fit in my backseat with my other 2 car seats that met my safety criteria!
Best UsesRear facing, forward facing, 3 across in small vehicle
By Shelly
Southern CA
Great Car Seat
September 25, 2016
We've had the Diono Radian RXT for about a month and so far our little man seems to love it. It was easy to install and does seem very sturdy and most importantly safe. I love the fact that he can grow with this car seat and that it will last for years. Color is nice and fabric is soft. Good buy. Price on Albee Baby can't be beat and we received it sooner than expected!

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