What is a 4-point wheelchair tie-down system?

A 4-point tie-down uses four retractors or straps — two at the front and two at the rear of the wheelchair — to secure the chair to the vehicle floor. When combined with a lap and shoulder belt for the occupant, it meets federal ADA and WC18 securement standards for paratransit, NEMT, and school bus transport.

Is wheelchair securement required by law?

Yes. The Americans with Disabilities Act (ADA) requires that all public transit vehicles equipped to transport wheelchair users must have an approved securement system. NEMT providers, paratransit operators, and school bus fleets are all subject to federal and state securement regulations. Failure to comply can result in fines and significant liability in the event of an accident.

What does WC18 compliant mean?

WC18 is the RESNA/ANSI standard that defines performance requirements for wheelchair tie-down and occupant restraint systems (WTORS). WC18-compliant products have been crash-tested to withstand higher load forces than previous standards, providing greater protection for wheelchair users in the event of a collision or sudden stop.

Which wheelchair securement brands do you carry?

We are an authorized dealer for Q'Straint, AMF Bruns, and Sure-Lok — the three leading manufacturers of wheelchair tie-down and occupant restraint systems worldwide. All products meet or exceed WC18 compliance standards where applicable.

What is the difference between an L-track and a Slide N' Click system?

L-track is a recessed floor channel that accepts fittings at any point along its length, giving installers maximum flexibility in retractor placement. Slide N' Click is Q'Straint's proprietary system using pre-set anchor points that allow faster, tool-free securement — popular in high-volume paratransit operations where speed of securement matters.

What is the difference between a manual and retractable wheelchair strap?

Manual straps are fixed-length webbing straps with a hook or loop connection — simple, affordable, and reliable. Retractable systems use a spring-loaded mechanism to automatically take up slack, making securement faster and reducing trip hazards from loose webbing. Electric retractors add powered retraction, ideal for operators or drivers with limited hand strength or mobility.

Do you offer fleet pricing for multiple vehicles?

Yes. We offer fleet pricing for operators outfitting five or more vehicles. Submit your vehicle count, vehicle type, and preferred brand through our Fleet Quote form and a specialist will respond within one business day.

Do your products come with installation instructions?

Yes. All products ship with manufacturer installation guides. We also maintain a full library of installation and user guides on our website for Q'Straint, AMF Bruns, and Sure-Lok products. Our specialists are also available by phone at 800.884.6456 if you need installation support at no charge.

FREE STANDARD SHIPPING ON ORDERS OVER $100 - 800.884.6456

Diestco Mobility Device Deluxe Seatback Bag | B1121

Vendor: Diestco
Regular price: $78.00
Sale price: $78.00
Unit price: per

Shipping calculated at checkout.

Diestco Deluxe Seatback Bag | B1121

Water-Resistant Storage for Wheelchairs, Scooters & Power Chairs

The Diestco Deluxe Seatback Bag (B1121) is the company's best-selling mobility storage bag, built to mount behind the seat of a wheelchair, scooter, or power chair and carry everyday essentials without adding bulk to the sides of the chair.

Multiple internal compartments keep smaller items separated from bulkier ones, and reflective trim adds visibility in low light — a practical add for anyone who travels near roads or parking lots after dark.

Key Features

Mounts to most seatbacks from 7" to 24" tall
Multiple storage compartments keep belongings organized
Water-resistant nylon construction
300-yard reflective trim for added visibility
Approx. dimensions: 14"W x 16"H x 4"D

Manual Wheelchairs Power Wheelchairs Mobility Scooters

Fits any seatback measuring 7" to 24" tall. Measure your seatback height before ordering if you're near either end of that range.

Specifications

SKU	B1121
Dimensions	Approx. 14"W x 16"H x 4"D
Fits Seatback Height	7" to 24"
Body Material	Water-resistant nylon
Strap / Webbing	Polyester
Reflective Trim	300-yard reflective tape for added visibility
Weight	3 lbs
Manufacturer Warranty	6 months from date of purchase (repair or replacement, Diestco's discretion)

Frequently Asked Questions

Will this fit my chair's seatback?

The B1121 fits seatbacks from 7" to 24" tall, which covers the large majority of manual and power wheelchairs and scooters. Measure your seatback height first if it's close to either end of that range.

Is it waterproof?

It's water-resistant, not fully waterproof — the nylon shell sheds light rain and splashes, but it isn't rated for submersion or extended downpours.

Questions About Fit?

Our team can help confirm sizing before you order.

This company is wonderful. They called and texted me to make sure I received the correct holder for my chair. ⭐⭐⭐⭐⭐

High quality and really holds my daughter well in her wheelchair.

This is my second one. I liked it so much on my old chair i purchased one for my new chair.

A perfect fit for my Whill C2. Quick shipping.

Great fast shipping and a great safe product

Fit great. Firm installation.
Great company to deal with.
A little expensive.

I had such a great experience buying this part, I ordered it, the cost was exactly what I though, the shipping happened very quickly and installing the piece was so easy that I had it done in minutes. I had a great experience ordering from this company.

I have 2 sets of these - they work great! so much better that the manual straps.

wie beschrieben

We've been using your company to order equipment for our small business. Frankly, your service has so much better over the last few years. My last order was processed and delivered within 1 day of ordering it. Impeccable! I will continue doing business with you.

Thanks worked perfectly!!

I was amazed by the speed of the delivery. Thank you. I would recommned anyone interested in those products to shop at this great company

thank you for providing the product we needed at a good price

Very helpful on the phone finding the right product and they are currently responding to some questions. Pretty good customer service is say

I was pleased with this co.Efficient and the strap is grear

Good stuff

I wanted the red one and it was supposed to be with a wider clip

YOUR PRODUCT WAS AS ADVERTIZED AND IS EXCELLENT.

TOP ++++++++++++++1A!!!Danke❣️🍾🥂🥂🥂

Always great service!

Great product, using this to store to go catheters under the seat of my wheelchair.

Exactly what I needed

Works great!

Just whatI want

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