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🚗 Elevate every ride with the Britax One4Life Slim—where safety meets sleek innovation!
The Britax One4Life Slim All-in-One Car Seat is a convertible, harness-to-booster seat designed to grow with your child from 5 to 120 lbs (up to 10 years). Featuring a slim 17.5” SpaceSaver™ design, patented ClickTight® installation, and advanced safety technologies like SafeCell® and a high-strength steel frame, it offers premium comfort with cooling mesh, multiple infant inserts, and easy one-hand adjustments. Its recycled, machine-washable cover and easy-clean shell make maintenance effortless, while the seat’s versatility and trusted Britax safety make it a top choice for modern families.
| ASIN | B0DPLJRD8Y |
| Age Range Description | Kid |
| Best Sellers Rank | #3,304 in Baby ( See Top 100 in Baby ) #14 in Convertible Child Safety Car Seats |
| Brand | Britax |
| Color | Mineral Gray |
| Customer Reviews | 4.4 4.4 out of 5 stars (230) |
| Forward Facing Car Seat Minimum Height | 35 inches |
| Forward Facing Maximum Weight | 120 pounds |
| Forward Facing Minimum Weight | 30 pounds |
| Harness Type | 5-Point |
| Infant Toddler Car Seat Type | Convertible Car Seat |
| Installation Type | Seat Belt |
| Item Dimensions D x W x H | 18.5"D x 17.5"W x 24.5"H |
| Item Highlight | Rear Facing, Forward Facing, & Booster Mode, 17. |
| Item Weight | 28 pounds |
| Manufacturer | Britax USA |
| Material Type | Alloy Steel, Plastic |
| Maximum Height Recommended | 49 inches |
| Maximum Weight Recommendation | 120 pounds |
| Minimum Height Recommendation | 18 inches |
| Minimum Weight Recommendation | 5 pounds |
| Model Number | E1D437B |
| Number of Height Positions | 15 |
| Orientation | Rear and Forward Facing |
| Part Number | E1D437B |
| Rear Facing Car Seat Maximum Height | 49 inches |
| Rear Facing Maximum Weight | 50 pounds |
| UPC | 652182750008 |
| Unit Count | 1 Count |
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