britax car seat convertible booster Britax One4Life Slim All-in-One Car Seat – Baby Grand
SKU: 48567730677
britax car seat convertible booster

britax car seat convertible booster Britax One4Life Slim All-in-One Car Seat – Baby Grand

Sale price$20.12 Regular price$22.36
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Description

britax car seat convertible booster Britax One4Life Slim All-in-One Car Seat – Baby GrandThe One4Life Slim all in one car seat takes your child from birth to big kid with trusted Britax safety, ClickTight installation, and a slim SpaceSaver design. As a convertible and harness 2 booster seat in one, it grows with your child for 10 years. It starts rear facing with an extended capacity of up to 50 lbs., so your child can ride rear facing longer. It easily converts to forward facing toddler mode (up to 65 lbs.) and high back belt

The One4Life® Slim all-in-one car seat takes your child from birth to big kid with trusted Britax safety, ClickTight® installation, and a slim SpaceSaver™ design. As a convertible and harness-2-booster seat in one, it grows with your child for 10 years. It starts rear-facing with an extended capacity of up to 50 lbs., so your child can ride rear-facing longer. It easily converts to forward-facing toddler mode (up to 65 lbs.) and high-back belt-positioning booster mode (up to 120 lbs.) when your child is ready. With a slim outside and spacious inside, the 17.5” seat is designed to fit 3 across* without compromising safety and comfort. ClickTight helps you install with confidence, every time. The base and shell are easy to wipe down for hassle-free cleanup. The car seat cover is safe to machine wash and dry, and it’s naturally flame-retardant with no added FR chemicals. One4Life Slim features a high-strength steel frame, a SafeCell® crumple zone, and a V-shaped tether. As your child grows, you can easily adjust the 15-position no-rethread harness and headrest with one hand. With cooling channels, premium padding, three infant inserts, and built-in armrests, your child will love every ride. 

  • All-in-One Car Seat: One4Life® Slim is a convertible and harness-2-booster seat in one!
  • It easily converts from a rear-facing infant and toddler seat (5-50 lbs.) to a forward-facing seat (30-65 lbs.) to a high-back booster seat (40-120 lbs.)
  • 10 Years of Use: This slim all-in-one car seat grows with your child from 5 to 120 lbs. and up to 63” tall
  • ClickTight® Installation: Install with confidence in 3 easy steps: pinch to open, thread and buckle, click it closed!
  • SpaceSaver™ Design: Slim outside, spacious inside! The 17.5” seat is designed to fit 3 across without compromising on trusted Britax safety and premium comfort.
  • Premium Fabrics: The woven mélange accents give the car seat cover a tailored look, while the soft knit fabric on the padding and inserts helps keep your child comfortable during every ride
  • Woven Accents on the Exterior and Comfort Pads: Made from recycled polyester
  • Hassle-Free Cleanup: Extra space between the shell and base means you can clean under the seat with ease – and with minimal grooves in the seating area and base, you can wipe it down with no fuss
  • SafeWash® Fabrics: No more hand-washing or waiting for the cover to air-dry; just quick and easy cleanup so you can keep moving
  • Naturally Flame-Retardant Cover: With no added FR chemicals
  • Three Removable Infant Inserts: Help provide a better fit for infants 20 lbs. and under
  • Accessible Color-Coded Belt Paths: Make it easy to route the seat belt through the correct path for each car seat mode
  • Slide-Out Cup Holders: The dishwasher-safe cup holders slide out with ease for convenient cleaning and click back into place for a secure attachment during rides
    \Cup-Holder-Free Option: Remove the cup holders completely and insert the armrest caps to save additional space
  • 15-Position No-Rethread Harness and Headrest: Adjust together quickly and easily with one hand to help create the proper fit as your child grows; no rethreading, ever!
  • Patented V-Shaped Tether with Staged-Release Stitches: Helps slow and reduce forward movement during a crash
  • High-Strength Steel Frame: Reinforces the seat structure to help keep it sturdy and stabilized
  • Quick-Push, 9-Position Recline with Easy-Read Indicators: Helps you find the most comfortable fit for your child and the correct angle for your vehicle
  • SafeCell® Technology: Acts as a crumple zone, absorbing crash energy to help keep it away from your child
  • Two Layers of Energy Management: The protective seat shell and foam-lined headrest help absorb impact energy and are designed to help keep your child's head, neck, and body safe
  • Soft Comfort Pads: Help prevent the harness from rubbing against your child’s skin
  • Flip-Forward Buckle Pad: Stays out of the way for easy boarding; made with extra padding for premium comfort
  • Built-In Cooling Channels: Improve airflow to help keep your child comfortable
  • Plush Padding: For superior comfort and a quiet ride
  • Easy-Pull Harness Adjuster: Lets you tighten the harness using just one hand
  • Harness Holder Slots: Keep the harness straps out of the way while your child gets in and out of the seat
  • 5-Point Safety Harness with Diamond Weave Webbing: Provides adjustment points at the hips, shoulders, and between the legs
  • Tag-Free Headrest: Supports your child’s head and neck without irritation

*Britax cannot guarantee 3-across fitment in all vehicles.

Specifications

  • Dimensions: 24.5"H x 18.5"D x 17.5"W
  • Weight: 28 lbs.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48567730677

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4.6 ★★★★★
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Stewart R.
Houston, US
★★★★★ 5
A good price
Size: Pack of 1
Great product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
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RJP
Port Orchard, US
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Great product name and value
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Great filter great name for a European car
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Reviewed in the United States on April 12, 2026
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Fight Fair
Houston, US
★★★★★ 5
2008 ml550 works
Size: Pack of 1
2008 ml550, fits well, works well, the Mobil1 filter is also a nice option,
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Reviewed in the United States on February 25, 2026
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Thomas
Waukegan, US
★★★★★ 5
Great filter at a great price.
Size: Pack of 1
Great filter at a great price. I like being able to change the oil in my older Mercedes for about a third of what the oil change place charges and 1/4 that of the dealer without the wait and using superior products like this Mann oil filter. Also, I like knowing it is done and done correctly. The whole process is less than an hour start to finish and the local recycling center takes the old oil.
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Reviewed in the United States on November 14, 2025
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Steve H
Houston, US
★★★★★ 5
It's the Genuine Part - Fits Large Selection of Mercedes Cars
Size: Pack of 1
There is no doubt that I like to take care of my vehicle. Therefore, with a car that calls for oil changes only every 10,000-13,000 miles, I want to be sure to use the approved oil filter that can survive that long. First, let me put this early in the review. I had had the Mercedes Branded and Box part side by side with this one. They are identical besides the labeling (and part of the labeling is the same as the Mercedes branded one still has the Mann logo and part number too). They are identical because Mann makes this filter, their own brand, and the filter for Mercedes. They are truly one in the same. These Mann HU 718/5 have a beautiful, strong construction, and indeed they are actually the OEM part. The OEM Mercedes-Genuine part has the Mann HU 718/5 part number right next to the Mercedes part number. The only thing missing on this filter is the Mercedes-Benz star logo, Mercedes part number, and the Mercedes-Benz box. Indeed, the filter is made in Germany as well for anyone wondering. Several of the other aftermarket brands actually use the OEM filter rebranded too, as of this writing, K&N oil, and Purolator oil. However, those products tend to be much more costly since those companies must buy the filters from Mann and resell them. The Mann branded filter is the best value and easiest to procure since it is right here on Amazon! How could it be any easier? I will only say that the OEM dealer Mercedes labeled filter is not too much more money than this one. Therefore, if you ever happen to be at the dealer or know of a dealer that has good parts pricing, you shouldn't necessary run from the genuine filter. It's the same as this and depending on the dealer, might just be a couple dollars more, if you're in a pinch and can't wait. Overall, extremely recommended filter. You can't argue with the original product! This OEM filter is designed to hold up for the extremely long oil change intervals recommended by Mercedes. Just be sure to use this filter along with an approved oil such as Mobil 1 0w40.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2012

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