Radian 3RX Latch All-in-One Convertible Car Seat



You’ll only ever need one car seat: this car seat! A child can use this seat from birth to 120 pounds; this lifespan seems too good to be true! The radian® 3RX is fabricated using super strong automotive high-strength steel, engineered into a dual spine. This unique core manages and dissipates energy and provides an unyielding structure to protect your baby. It shields your precious child through super side-impact protection with aluminum reinforcement. Get peace of mind with this seat!

Why Parents Love the Diono Radian 3RX

  • It’s the only car seat you’ll need for your child from birth to 120 pounds
  • Easy installation
  • Professionally and safely made

Why Children Love the Diono Radian 3RX

  • Low-sitting profile helps them climb in easily on their own
  • Comfortable
  • Can be used up to 120 pounds


  • All-in-one convertible car seat
  • Unmatched safety from steel frame
  • Easy installation
  • Safe Stop energy-absorbing harness
  • Long seat bottom
  • Rubber bottom grips for no-slip installation
  • 1 recline position for the rear-facing position and 2 recline positions for the forward-facing position
  • 10-year lifespan
  • FAA certified

Installation Options

  • SuperLATCH system
  • Rear-facing Tether LATCH option
  • Seatbelt Installation

Weight Capacity

  • Rear-facing: 5-45 lbs and whose height is 44 inches or less.
  • Forward-facing: 20-65 lbs and whose height is 57 inches or less.
  • Booster Use: 50-120 lbs. and whose height is 57 inches or less


  • Soft fabric covers
  • Memory foam seat base bottom
  • Lined with thick absorbing foam
  • Machine washable cover
  • Line or air dry cover
  • All other parts are to be wiped with damp cloth with warm water
  • Towel dry


More Product Info

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