Diono Monterey 4 DXT Expandable Booster Seat

Authorized Dealer

Color: Dark Gray

Sale price$199.99
SKU: 10831-US-01


The Diono Monterey 4DXT Booster car seat, was remodeled and improved to provide upgraded practical features. It offers a contoured structure, that will easily adjust in height and width with one hand, to sportively protect your child as they grow from 40-120 lbs. In addition, the side panels of this booster enable free air flow, and contributes 3 layers of side impact protective features, to minimize pressure of abrupt stops. With just a simple click, easily transition this booster into a backless seat with a compact structure. Two side cup compartments allow your child to have their favorite drinks within reach as they enjoy the ride.  


  • Multiple seat adjustment options with one hand.
  • Integrated latch connectors enable quick and safe installation.
  • Improved seat fabric design.
  • Breathable side panel.
  • Side impact protective features to reduce pressure of abrupt stops.
  • Easy one hand adjustment knob.
  • Approximate age 4-12 years.
  • Cup holders included.
  • Transitions into a backless seat with just a simple click.
  • Fully covered back to protect vehicle seat. 
  • EPP foam coating / EPS coated outer frame/ Polyester & spandex seat cover.
  • Machine washable cover.
  • 12 months standard warranty - extended to 36 months when you register with Diono® post purchase
Dimensions & Weight
  • 10.6" x 20.7" x 33.9"
  • 20.3 lbs.
  • Suitable Height 38"-63".
  • Suitable Weight 40-120 lbs.

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