click to zoom in

Self Installation Stair Lift | Harmar SL300

$3,445.00 - $4,195.00
Calculated at Checkout
Weight Capacity (Pounds):
Straight Stairway
Made in USA

have questions?

  • Step 1 | Gather Requirements

    Size, Weight Capacity, etc

  • Step 2 | In-House Experts

    Available to Answer Questons

  • Step 3 | Place Order

    Order Online or Call

  • Step 4 | We Pay Shipping!

    $50+ Orders - Contiguous U.S.A.


Hide Show

Harmar Stair Lift | Pinnacle SL 300 | Self Installation!

Harmar Stair lift, Pinnacle SL 300,  is made in the USA and offers the finest in streamlined, ultra-compact design and performance.   


Pinnacle SL 300 straight rail stairlift combines strong, subtle operation with reliability and safety.  

Engineered to the highest industry standards, Pinnacle stair lifts are designed for optimal comfort, convenience and aesthetics. Space-saving Pinnacle folds to 11 inches, making it the narrowest lift on the market. And its patented helical worm gear drive generates the smoothest, safest and most energy-efficient ride available.

The Pinnacle SL300 has earned its name and reputation for standing above the rest. Design, Form and Function come together to make Pinnacle the most reliable, durable, and sought after stair lift on the market. 

What makes Pinnacle different? It’s what you don’t see, the patented Helical Worm Gear and reinforced Nylon Polymer Gear Rack. This innovative drive system eliminates maintenance, provides you savings with lower energy bills, and delivers a smooth, stable ride you can rely on. 

The Pinnacle SL300 is COMPACT - The Pinnacle SL300 seat folds up neatly, occupying a mere 10.5" of width from your staircase wall and allowing others to pass by. The rail mounts only 0.5" from the wall and is only 3" tall, helping to minimize its footprint. 

The SL300 and SL300FR offer a 300 lb weight capacity and the confidence to conquer the stairs in your home. 

Harmar Stair Lift 300 Features:


  • Narrowest stair lift in the industry – only 11” wide when footrest and seat are folded!

  • Swivel seat at upper landing, for easy and safe, entry and exit

  • Easy operating controls and indicator lights

  • Patented helical worm gear drive system for extremely smooth ride

  • Operable in a power outage – up to 40 trips!

  • Comfortable seat with height adjustment

  • Safety sensors will stop the lift if it meets an obstruction

  • No greases or lubricants; easy to vacuum and keep clean

  • 2-Year warranty on components, 10-Year on gear rack, 1-Year on batteries

  • Easy, 1 person installation (Harmar recommends that all stair lifts are professionally installed)

  • Made in the USA

Harmar SL 300 Specifications:

  • Weight capacity 300 lbs (136kg)

  • Electrical requirements 115 VAC

  • Operation power 24V DC Battery

  • Travel distance 16 ft is standard; lengths available up to 75 ft

  • Speed 17-21 ft/minute

  • Incline limits 32– 52 degrees

  • Drive system Polymer worm/worm-rack

  • Track (rail) type Extruded aluminum

  • Average return trips per charge 20 – 40 (varies with load, length)

  • Switchable arms (Left or right hand operation) Yes

  • Need to open chassis to install or change sides No

  • Available Seat Colors: Light Almond (Standard), Bluebell, Pine Green, Ruby Red


  • Most states have minimum passing widths when the stairlift is folded.  In Michigan that distance is 20" when the lift is folded.  Therefore, this lift should meet code in Michigan, when installed properly, if the stairway is at least 31 inches wide.


  • Folding Rail - Harmar’s exclusive automatic and mechanical folding rail eliminates a trip hazard at the lower landing area. Its operation is automatic, the user does not need to stop or have someone else assist. And since it’s mechanical, there are no additional switches or controls.

  • Key Lock 

  • The Pinnacle SL300 comes standard with 15'6" of rail, which is enough for most stairways.  7" of top tread overrun is required.  Therefore, the standard rail will work on stairways with lower floor to top nose lengths of 14' 9" or less.  The purchaser has the option to buy additional Rail.


Owners Manual

Installation Manual


Site Evaluation Form



Please Note:

  • It is the purchaser's responsibility to investigate, know and comply with State and Local law.  EZ Able® is not responsible for the purchaser's compliance with State and Local Law.  Some States require a permit and professional licensed installation for stair lift installations. Some states include, but may not limited to: Washington, Oregon, Minnesota and New Jersey. Please check with your state and/or local government office regarding permitting as well as other installation requirements.

  • Installed Service MAY BE available in your area.  Please contact us to learn more.  Installatin costs vary regionally due to additional travel costs, permit fees, site preparation, etc.  EZ Able® makes its best effort to consider these costs in advance.  However, we reserve the right to modify pricing if needed.

  • Non-Refundable once your product is purchased from the Manufacturer for your project.
  • **WARNING! STRICT ADHERENCE TO THESE INSTALLATION INSTRUCTIONS is required and will promote the safety of installers, as well as those who will use the lift for its intended purpose. Any deviation from these instructions will void the LIMITED WARRANTY that accompanies the product. Additionally, any party installing the product who deviates from the INSTALLATION INSTRUCTIONS shall be taken to agree to INDEMNIFY, SAVE AND HOLD HARMLESS the dealer and the manufacturer from any and all loss, liability or damage, including attorney fees, that might arise out of or in connection with such deviation.

Harmar Stair Lift | Pinnacle SL 300 

Free Shipping* is only available for orders over $50 shipping to a location within the contiguous USA.

Please Call 877.392.2531 for shipping availability and cost to ship to locations outside of the Contiguous USA.

Info Sheets & Guides

Hide Show

Shipping Info

Hide Show

Here are our most commonly asked questions...

  • Shipping Timeframe?
    Most Products Typically Ship within: 1 - 5 business days | Made Upon Order Products Typically Ship within: 3-6 business days
  • How do I order this?
    We try to make it easy. You may place your order online or over the phone. If you need assistance, please call 877.392.2531.
  • I can't find what I'm looking for?
    Please feel free to call 877.392.2531, connect with us via our online chat, or use our consultation form.
  • How do I request a return?
    Start by logging into your account. Under ORDERS, click on the tab called RETURNS. Once you fill out and submit your return request, then EZ Able® will begin the Return Authorization process.
    Some items are returned directly to EZ Able, while others are returned directly to the manufacturer. Return Authorization processing times vary by manufacturer. Please allow 1-5 business days to receive your authorization via email. The emailed Return Authorization Form will have all of the information necessary to return your item. You are responsible for return shipping. The restocking fee, if any, will be listed on the Return Authorization Form.
  • Do you ship to Canada? Hawaii? Alaska?
    Some items are available to be shipped internationally or to Alaska or Hawaii. Please contact EZ Able® to determine the availability of your product. Please feel free to call 877.392.2531, connect with us via our online chat, or use our consultation form.
  • I can't place my order? What is going on?
    EZ Able® can't ship to PO Boxes. Our online store does not allow check-out for deliveries which require custom shipping quotes. Those destinations include, but are not limited to: Canada, Mexico, Hawaii, Alaska, etc.
    Please contact EZ Able® to determine the availability of your product. Please feel free to call 877.392.2531, connect with us via our online chat, or use our consultation form.
  • I need a product specification sheet?
    Product Specification information is located under the product images
  • Do you offer financing?
    EZ Able® has 2 financing options at check-out. PayPal Credit and Klara. Simply follow the secure links and fill out the credit application according to instructions

Customers Also Viewed

Need help? We're available at877.392.2531 - Email us
to top