1. Product Overview
The Evenflo EveryFit/All4One 3-in-1 Convertible Car Seat is designed to provide comfort, safety, and longevity for your child, accommodating them from infancy through booster age. This car seat transitions through three modes of use, offering protection for up to 10 years.
- 10 Years of Use: Functions as an infant car seat, convertible car seat, and high-back booster.
- Three Modes: Rear-facing with harness (4-40 lb), forward-facing with harness (22-65 lb), and high-back booster (40-120 lb).
- Safety Priority: Meets or exceeds all applicable Federal Safety Standards, including structural integrity, side-impact, rollover, and temperature testing.
- Quick Clean Cover: Features a removable and washable cover for easy maintenance.
- Proper Fit: Equipped with a one-hand, 12-position headrest and no-rethread harness for easy adjustment as your child grows.

Figure 1: Front view of the Evenflo EveryFit/All4One 3-in-1 Convertible Car Seat in Belmont Brown, showcasing its design and integrated cup holders.
2. Setup and Installation
Proper installation is crucial for your child's safety. Always refer to the complete instruction manual included with your car seat for detailed steps and vehicle-specific requirements.
2.1. Harness and Headrest Adjustment
The car seat features a one-hand, 12-position headrest and a no-rethread harness system, allowing for easy adjustment as your child grows without the need to uninstall the car seat.

Figure 2: Illustration demonstrating the upward adjustment of the 12-position headrest and harness system to ensure a proper fit for a growing child.
2.2. Installation Methods
The Evenflo EveryFit/All4One car seat can be installed using either the vehicle's LATCH system or the vehicle's seatbelt. The Quick Connector LATCH and belt guides are designed for an easy and secure installation.
- LATCH Installation: Utilize the Quick Connector LATCH attachments to secure the car seat to your vehicle's lower anchors. Ensure a tight fit with minimal movement (less than 1 inch side-to-side or front-to-back at the belt path).
- Seatbelt Installation: Route the vehicle's seatbelt through the designated belt paths. Lock the seatbelt and ensure the car seat is securely installed with no more than 1 inch of movement.

Figure 3: Rear view of the car seat, highlighting the clear belt path for secure installation using the vehicle's seatbelt.
3. Operating Modes
This car seat offers three distinct modes to accommodate your child's growth and development.
3.1. Rear-Facing with Harness
This mode is suitable for infants and toddlers. The car seat must be installed in a rear-facing position in your vehicle.
- Weight Range: 4 - 40 lb
- Recline Positions: Features three recline positions for optimal comfort and safety in rear-facing mode.

Figure 4: Side view of the car seat illustrating the range of recline positions available for proper installation and child comfort.
3.2. Forward-Facing with Harness
Once your child meets the minimum age and weight requirements, the car seat can be converted to a forward-facing position.
- Weight Range: 22 - 65 lb
- Minimum Age: For children at least 2 years old.
3.3. High-Back Booster
For older children, the car seat transitions into a high-back booster, utilizing the vehicle's seatbelt to secure the child.
- Weight Range: 40 - 120 lb
- Minimum Age: For children at least 4 years old.

Figure 5: The car seat configured as a high-back booster, demonstrating the proper routing of the vehicle's seatbelt for older children.
4. Maintenance and Cleaning
Regular cleaning helps maintain the car seat's condition and hygiene. The Evenflo EveryFit/All4One features a Quick Clean Cover for convenience.
4.1. Quick Clean Cover
The seat pad features a Quick Clean Cover that is easy to remove and wash.

Figure 6: A hand demonstrating the removal of the Quick Clean Cover from the car seat for cleaning.
4.2. General Care Instructions
- Seat Pad: Machine wash the seat pad separately in cold water on a delicate cycle. Tumble dry for 10 to 15 minutes on low heat.
- Harness: The harness can be wiped clean with mild soap and water. Allow the harness to air dry completely.
- Plastic and Metal Parts: These parts may be wiped clean with mild soap and water and dried with a soft cloth.
- Important: DO NOT lubricate or immerse in water any part of this child restraint, unless rinsing is specifically permitted by the full instruction manual.
4.3. Removable Cup Holders
The integrated cup holders are removable for easy cleaning.

Figure 7: An image showing a removable cup holder detached from the car seat, indicating ease of cleaning.
5. Troubleshooting
If you encounter issues with your Evenflo EveryFit/All4One car seat, consider the following common troubleshooting steps. Always refer to the full instruction manual for comprehensive guidance.
- Car Seat Movement/Wiggling: Ensure the car seat is installed tightly. When installed with LATCH or seatbelt, the car seat should not move more than 1 inch side-to-side or front-to-back at the belt path. Re-read the installation section of your manual and re-install if necessary.
- Harness Adjustment Difficulty: Check for any twists in the harness straps. Ensure the harness adjuster is free of debris. Refer to the harness adjustment section in your manual.
- Structural Concerns: If you observe any damage, bending, or cracking of the car seat frame or components, discontinue use immediately. Contact Evenflo Customer Service for assistance and do not attempt to repair the car seat yourself.
- Child Discomfort: Ensure the harness is at the correct height for your child's shoulders (at or below for rear-facing, at or above for forward-facing). Adjust the headrest and recline position as needed for comfort and proper fit.
For further assistance, please contact Evenflo Customer Service.
6. Specifications
Key specifications for the Evenflo EveryFit/All4One 3-in-1 Convertible Car Seat:
| Feature | Detail |
|---|---|
| Product Dimensions | 19.13 x 19.13 x 27.63 inches |
| Item Model Number | CS300212442 |
| Item Weight | 19 pounds |
| Material Type | Polyester (100% Polyester) |
| Minimum Weight Recommendation | 4 Pounds |
| Maximum Weight Recommendation | 120 Pounds |
| Minimum Height Recommendation | 17 Inches |
| Maximum Height Recommendation | 57 Inches |
| Number of Reclining Positions | 3 |
| Harness Type | 5-Point |
| Installation Type | LATCH, Seatbelt |
| Color | Belmont Brown |

Figure 8: Diagram showing the approximate dimensions of the Evenflo EveryFit/All4One car seat.
7. Warranty and Support
Evenflo products are designed and tested to meet or exceed all applicable federal safety standards. For specific warranty information, product registration, or to contact customer support, please visit the official Evenflo website or refer to the warranty card included with your purchase.
Evenflo Official Website: Visit the Evenflo Store on Amazon





