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Radian® 3QX SafePlus™

by Diono®

Original price $375.00
Original price $375.00 - Original price $375.00
Original price $375.00
Current price $300.00
$300.00 - $300.00
Current price $300.00
Color: Gray Slate
SKU 210000004567

3 stages of newborn safety and 3-across advanced all-in-one convertible car seat with 15 SafePlus™ features.


  • 10 Years One Car Seat - from Birth to Booster (1.8 - 54 kg) it's all you will need. Grows with your child, ultimate protection on every road trip. 4 modes in 1 seat!
  • Safeplus™ Rear-Facing Engineering up to 54 kg. Includes 3 stages of newborn protection and our steel anti-rebound bar that reduces rebound rotation by up to 50% while increasing space for your growing child.
  • Fits 3-Across - our famous slim-fit design with SafePlus™ 6-layer side impact protection with zero compromises to safety, space, or comfort.
  • Mechanically engineered from reinforced automotive grade high-strength steel, our unique core shell shields and protects your child.
  • One hand easy-adjust 12-position headrest, the SafePlus™ completes 6 layers of enhanced, rigorously tested, side impact protection.
  • The original and only all-in-one convertible car seat that folds for travel or compact storage. FAA approved for airline use.

Product Specs

  • Minimum User Weight: 1.8 kg / 4 lb
  • Maximum User Weight: 54 kg / 120 lb
  • Number of Head Support Positions: 12
  • Minimum User Weight - Rear Facing: 1.8 kg / 4 lb
  • Maximum User Weight - Rear Facing: 22.7 kg / 50 lb
  • Maximum User Weight - Rear Facing LATCH: 15.8 kg / 35 lb
  • Minimum User Weight - Forward Facing: 10 kg / 22 lb
  • Maximum User Weight - Forward Facing: 29.5 kg / 65 lb
  • Maximum User Weight - Forward Facing LATCH: 18 kg / 40 lb
  • Minimum User Weight - Booster: 18 kg / 40 lb
  • Maximum User Weight - Booster: 54 kg / 120 lb
  • Maximum User Height: 145 cm / 57.1 in
  • Product Height: 72.4 cm / 28.5 in
  • Product Width: 43.2 cm / 17 in
  • Product Depth: 40.6 cm / 16 in
  • Seat Weight: 14.2 kg / 31.3 lb

Care & Maintenance

Covers: Machine wash cold, line dry. Shell and Components: Spot clean

Warranty Information

12 months warranty

CANADA: Shipping to Quebec and Ontario takes 1 to 2 business days. Shipping to the rest of Canada takes between 1 to 7 business days, relative to your distance from Montreal. Free shipping over 50$*. Exceptions apply to large items like cribs, mattresses and daycare furniture.

USA: Shipping to United States takes 2 to 7 business days, relative to your distance from Montreal. Free shipping over 100$* Exceptions apply to large items like cribs, mattresses and daycare furniture.

INTERNATIONAL: International shipments take 3 to 10 business days.

If a product arrives defected or not as described, we will replace it at no extra cost to you.

Returns or exchange for sizing will be at no extra cost to the buyer.

If the return or exchange is for any other reason, we will ask the buyer to pay for the return shipping.

For more information, see our return policy.

Every product comes with it's own warranty. Once a product is removed from its original packaging, the buyer must contact the manufacturer directly to make a warranty claim. All our suppliers are reputable Canadian brands with good warranty policies.

Warranty's do not apply for clothing and shoes.

Manufacture SKU: 50321

Customer Reviews

Based on 100 reviews
review f.d.
Excellent car seat

Good quality car seat. LO is comfortable and has not complained being in a car seat ever since the Radian 3QX! Puts your mind at ease with a safe, well built car seat. Worth the money!

review f.d.
look ok haven' t open

look ok haven' t open it yet it' s for a gift

review f.d.
Thank you

I ordered it because I had a chance in Korea, but it's as it's said!

review f.d.
big but AMAZING

Had to scoot the seat up a bit to accommodate for it leaning back a bit more than other carseats but it fits perfectly with two other carseats next to it!

review f.d.
Great car seat

This car seat is great it fits perfectly in my car and keep my child secure and comfortable


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