All Levelok Leveling Systems are compatible with the Werner D1200 and D1300 series aluminum extension ladders. See 4-minute Installation videos on specific leveler pages or youtube.com.

Supreme Extender™ Ladder Leveler w/ Stabilizer Arm (Permanent Mount Style) Complete Kit
Kit includes:
- 2 Ladder Levelers with Stabilizer Arms
- 10″ of Leveler Leg extension at 3/16″ increments
- 13.5″ Stabilzer Arm length
- Installation Hardware
- Instruction Manual
- Template
For standard ladder rails, up to 3/8″ thickness (thickness refers to the Inner Web)
Now Approved for Werner Glidesafe Series
Rail thickness = Ladder Rail Thickness at the middle, or centerline, portion of a ladder rail. Most North American extension, articulating and step ladders, made with aluminum or fiberglass, have a rail thickness of about 1/8”. Wood ladders typically have a rail thickness of about 1-1/4”.
SKU: LL-STB-4SE For standard ladder rails, up to 3/8″ thickness (thickness refers to the Inner Web) $239.99

Supreme Extender™ Ladder Leveler w/ Stabilizer Arm (KeyLok® Quick Connect Style) Complete Kit
Kit includes:
- 1 Supreme Extender Leg w/stable arm
- 2 Standard KeyLok Base Units
- 10″ Leveler Leg extension at 3/16″ increments
- 13.5″ Stabilizer Arm – 16″ total side reach
- Install hardware for ladders with rail thickness up to 1/2″
- Installation & Operation Instructions
Now approved for Werner GLIDESAFE Series and Little Giant Hyperlite, Type 1A, 300 lb Duty Rated Ladders. See Installation tab below and go to Page 3. NOTE: For installation onto Hyperlite Type 1AA, 375 lb Duty Rated Ladders, please use “Streamline” Quick Connect Leveling System, model LL-QC-3 and LL-STB-3QC.
For standard ladder rails, up to 3/8″ thickness (thickness refers to the Inner Web)
SKU: LL-STB-4SE-2QC For standard ladder rails, up to 1/2″ thickness (thickness refers to the Inner Web) $179.99

Supreme Extender™ Ladder Leveler w/ Stabilizer Arm (KeyLok® Quick Connect Style) – Sold in Singles. (Does “NOT” include QC Base Units)
Kit includes:
1 KeyLok QC Leveler / Stabilizer Leg with built-in Pop-Out Stabilizer Arm
- Attaches to KeyLok Base Units LL-QC-1 and / or LL-QC-3
- This Leveler / Stabilizer is included in model LL-STB-4SE-2QC

Ladder Levelers Stabilizer (Permanent Mount Style) Complete Kit
Kit includes:
- 10″ of extension at 3/16″ increments
- 2 Ladder Levelers
- Installation Hardware
- Instruction Manual
- Template
Now Approved for Werner Glidesafe Series
Rail thickness = Ladder Rail Thickness at the middle, or centerline, portion of a ladder rail. Most North American extension, articulating and step ladders, made with aluminum or fiberglass, have a rail thickness of about 1/8”. Wood ladders typically have a rail thickness of about 1-1/4”.

Ladder Leveler Stabilizer (KeyLok® Quick Connect Style) Complete Kit
Brand: Levelok
Manufacturer: Levelok
Kit includes:
- 10″ of extension at 3/16″ increments
- 2 Quick Connect Base Units
- 1 Quick Connect Ladder Leveler
- Installation Hardware for ladders with rail thickness of 1/2″ or less
- Installation & Operation Instructions
Now approved for Werner GLIDESAFE Series and Little Giant Hyperlite, Type 1A, 300 lb Duty Rated Ladders. See Installation tab below and go to Page 3. NOTE: For installation onto Hyperlite Type 1AA, 375 lb Duty Rated Ladders, please use “Streamline” Quick Connect Leveling System, model LL-QC-3 and LL-STB-3QC.

Ladder Leveler Stabilizer (Streamline KeyLok Style for Fiberglass Ladders Only!) – Complete Kit
Kit includes:
* Fits Fiberglass Ladders only with minimum rail width of 3-5/16″
*Now approved for Werner GLIDESAFE Series and “all” Little Giant Hyperlite Ladders. For more details, click “Installation” tab below and review Page 4 before starting installation procedure. Click “Installation” tab below and follow Instructions page 1-3 for Type 1A Hyperlite, and Page 4 for Type 1AA Hyperlite.
- 2 “Streamline” Quick Connect Base Units
- 1 Quick Connect Ladder Leveler
- Installation Hardware for ladders with rail thickness of 1/4″ or less
- Installation & Operation Instructions
- Leveler provides 10″ of extension at 3/16″increments

Streamline Base Units for KeyLok Leveling System – pairs (Does “NOT” Include Ladder Leveler)
Fits most Fiberglass Extension, Step and Combination Ladders made in the USA and Canada.
For fiberglass ladders only. NOT for use with aluminum ladders.
This product is now available, as a Pre-Installed Accessory, on any Bauer Fiberglass Extension Ladder!
*Now approved for Werner GLIDESAFE Series and “all” Little Giant Hyperlite Ladders. For more details, click “Installation” tab below and review Page 4 before starting installation procedure. Click “Installation” tab below and follow Instructions page 1-3 for Type 1A Hyperlite, and Page 4 for Type 1AA Hyperlite.
Kit includes:
- a pair (2) base units, installation hardware and instructions.
Features:
- Lightweight: Only 3/4 pound per bracket
- Thin: Only 1/2” depth to minimize overall width of ladder
- Tapered at top to protect latch and prevent abrupt interferences
- Installs on fiberglass extension, combination, platform and step ladders
- Enables quick attachment of KeyLok Ladder Levelers
- Approved for ladders up to a Type 1AA, 375 pound duty rating
- Meets all ANSI and OSHA Standards

Ladder Leveler for KeyLok Leveling System – single (Does “NOT” Include Base Units)
Kit includes:
1 Leveler
- Attaches to KeyLok Base Units LL-QC-1 and LL-QC-3
- This Leveler is included in model LL-STB-2QC

Base Units for KeyLok Leveling System – pairs (Does “NOT” Include Ladder Leveler)
Kit includes:
- 2 Quick Connect Base Units
- Installation Hardware
- Installation & Operation Instructions
Now approved for Werner GLIDESAFE Series and Little Giant Hyperlite, Type 1A, 300 lb Duty Rated Ladders. See Installation tab below and go to Page 3. NOTE: For installation onto Hyperlite Type 1AA, 375 lb Duty Rated Ladders, please use “Streamline” Quick Connect Leveling System, model LL-QC-3 and LL-STB-3QC.

Ladder Safety Strap for top of ladder
- 1 Ladder Safety Strap
- Installation Instructions