SKU: 90930411494
britax harness extender

britax harness extender Merritt Manufacturing | Roosevelt Car Seat

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  • CAN

Ships within 48 hours · Estimated delivery Sep 15 - Sep 20

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Description

britax harness extender Merritt Manufacturing | Roosevelt Car SeatThe Roosevelt Car Seat by Merritt Manufacturing is specially designed for children with special health care needs and supports weights between 35 and 115 pounds. Now available in eleven fabric color options, this seat provides exceptional positioning support for taller children. The Roosevelt can accommodate users up to 5'2" tall5 inches taller than the competition! It features five shoulder strap height options, with the tallest setting reaching 22

The Roosevelt Car Seat by Merritt Manufacturing is specially designed for children with special health care needs and supports weights between 35 and 115 pounds. Now available in eleven fabric color options, this seat provides exceptional positioning support for taller children.

The Roosevelt can accommodate users up to 5'2" tall—5 inches taller than the competition! It features five shoulder strap height options, with the tallest setting reaching 22 inches above the seat. Seat depths extend up to 15 ¾ inches with optional extensions. The EZ-Up headrest can be used alone or paired with the EZ-Up cap for additional head support.

For secure installation, the EZ-Tether system allows the Roosevelt to work with most shoulder belts, reducing the need for tethering in most cases. Conveniently located strap adjusters, a Scoliosis Harness Option, and the Stay-Put Pommel provide extra positioning support, making it an excellent choice for children requiring additional stability.

The standard color is Graphite. While some photos may show a tan car seat, please note that Tan is not available.

Features

Customizable Seat Depth

Padded seat extenders ensure optimal leg support with adjustable depth options.

Tailored Fit

Any combination of seat depths is available to accommodate individual needs.

Extended Back Height

A 30-inch seatback provides ample support for taller children.

Hassle-Free Installation

The EZ-Tether system minimizes the need for tethering, making setup easier in older vehicles.

The Roosevelt Car Seat Benefits

 

Tailored Fit for Individual Needs
Padded seat extenders provide optimal leg support with customizable depth options

Extended Support for Taller Children
Accommodates users up to 5'2" tall, surpassing many competitors


Simplified Installation
The EZ-Tether system often eliminates the need for tethering, streamlining setup in older vehicles

Comprehensive Positioning Support
Optional accessories like the EZ-Up Headrest and Scoliosis Harness enhance comfort and stability for children with specific needs.

Durable and Reliable
Designed to meet rigorous safety standards, ensuring long-lasting protection for children with special health care need.

Optional Features

EZ-UP Headrest System

Designed for children with limited head control, the EZ-Up system helps maintain a natural head position. Pair it with the EZ-Up Cap™ to limit forward movement.

Quick-Change Incontinent Cover

Simplifies cleanup by allowing easy removal of the leak-proof cover without detaching the harness or seat components. Just remove, wash, and replace quickly.

Scoliosis Harness

Features independent bilateral hip adjusters and additional foam padding to help therapists achieve optimal positioning by filling gaps behind the child’s back.

EZ-Guard Buckle Cover

Prevents the occupant from unbuckling the car seat harness, enhancing safety.

Chest Clip Guard

Designed to stop the occupant from pushing down or unfastening the chest clip, ensuring secure positioning.

 

Stay-Put Pommel

The pommel (abductor) remains securely in place during use but pivots away for easy transfers.

Choice of Colors

Shaded Berry

Ocean Blue

 

Hunter Orange Camo

 

Graphite

 

Total Camo

 

Turquoise Rain

 

Midnight Dragon

 

Citrus Road

 

Pink Camo

 

Purple Storm

 

Which Size is Right for You?

One Size Only
Minimum Weight 35 lbs
Maximum Weight 115 lbs
Minimum Height 33.5 inches
Maximum Height 62 inches
Shoulder Width Maximum 15.5 inches
Thigh Width Maximum 14.5 inches
Shoulder Strap Heights 12.5 inches
15.00 inches
17.25 inches
19.75 inches
22.25 inches

Accessories & Options

EZ-Guard Buckle Cover

Prevents the occupant from accidentally unbuckling the car seat harness.

Scoliosis Harness Kit

Features independent hip adjusters and additional foam padding for customized spinal support and positioning.

Foam Abductor

Securely stays in place with a unique attachment design and pivots away for easy transfers.

Chest Clip Guard

Restricts the occupant from pressing down or unfastening the chest clip.

EZ-Up Headrest System

Designed for individuals with poor head control, offering lateral support and preventing forward head movement when used with the EZ-Up cap.

3-Inch Seat Depth Extender

Extends the seat depth by 3 inches, providing a total seat depth of 15.5 inches.

4.5-Inch Seat Depth Extender

Increases the seat depth by 4.5 inches, resulting in a total seat depth of 17 inches.

A-Lok Cover

Prevents the occupant from adjusting or tampering with the harness system.

Quick-Change Incontinent Cover

Allows for fast and hassle-free replacement with a leakproof, washable cover without removing the harness or seat cover.

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: 90930411494

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Ron McCrea
Pawtucket, US
★★★★★ 5
Just as good as OEM
Exactly what I expected...
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Reviewed in the United States on August 9, 2025
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wes
Natrona Heights, US
★★★★★ 5
Fit perfectly
Truly impressive, bought these and a set from a us boat supplier a thermostat made in the USA . They came with the gasket separate . I could not figure out how to put it together . I used these in my mercury optimax 135 hp . They fit perfectly and appear to be working great at a quarter the cost .
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Reviewed in the United States on August 29, 2024
A
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Alan G
Alexandria, US
★★★★★ 5
High-Quality 12 AWG Silicone Wire — Perfect for Battery Projects
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
I bought the BNTECHGO 12 Gauge Silicone Wire (10 ft red and 10 ft black) to wire my battery power box, and it has worked flawlessly. BNTECHGO wire has always been reliable for me, and this set is no exception — very flexible, durable, and easy to work with. I’ve purchased numerous other gauges and colors from BNTECHGO, and I continue to be very happy with the quality. I would definitely buy again. Important Note: The amperage rating depends on your wire gauge and your specific application. Make sure to size your wire appropriately based on the current requirements of your project to avoid overheating or damage. Potential Uses: Wiring battery power boxes or DIY power systems Automotive, RV, or marine electrical projects Solar panel or off-grid power setups Ham radio or portable electronics wiring LED lighting and audio equipment wiring Hobby electronics and custom projects Key Features: 12 AWG stranded tinned copper for excellent conductivity Silicone insulation for extreme flexibility and heat resistance 10 ft red and 10 ft black for positive/negative wiring High-quality, durable construction for long-lasting use Flexible enough to route through tight spaces without kinking Resistant to high temperatures, abrasion, and bending Disclaimer: This review reflects my personal experience only and is not professional electrical advice. Always follow proper safety procedures and ensure your wire is properly sized for your application’s voltage and current requirements.
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Reviewed in the United States on December 2, 2025
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Ohio guy
Cuba, US
★★★★★ 5
Very high quality for a fair price!
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
I just can't say enough good about this wire! It's really high quality stuff, so much so that I was impressed enough to write another review and buy more! Yeah it's really that good considering you don't see this type of wire around much. Good stuff!
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Reviewed in the United States on March 2, 2026
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David Crist
Battle Creek, US
★★★★★ 5
Top notch quality copper and cold flexibility.
Size: 12 silicone wire red 10ft and black 10ft, Color: silicone wire red and black
This is what you need for most 13.8 Volt power pigtails on portable ham radios. They will safely handle over 200 watts in most applications and the wire is flexible in the cold. I have set it outside as a reality check when it was 18.3F degrees and it flexes essentially the same as at room temperature. The copper itself is very fine strands and will likely never fail from normal use flexing. It solders easily with my 40 watt soldering iron. I will not hesitate to buy more if I need it.
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Reviewed in the United States on February 22, 2025

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