6LchHDMbAAAAAGPRKfV4mVX9FPM_gdroO62T7nWA

Enter Zip Code

Use my current location

Invalid zip code Closest store found:

Skip to main content Skip to footer content

DIY & Learn Parts Finder Gift Cards

Extra 25% off thousands of already marked down items! Shop Now

Type to search. Results will be shown below the search field.

Log In

Sign in for the best experience

Check out faster

Get $15 off $100 when you join

Earn points on purchases

Sign in or Create an Account

Email Address

Password

Remember me

Forgot password?

My Account Order History Track your packages and make easy returns. Payment Methods Address Book Check Order Status Track your packages with order number and email

0

Type to search. Results will be shown below the search field.

Reset Password

Please enter your email address:

Important

It may take up to 15 minutes for the reset email to arrive.
Be sure to check your spam/junk folder if you don’t see it in your inbox.

It may take up to 15 minutes for the reset email to arrive.
Be sure to check your spam/junk folder if you don’t see it in your inbox.

Featured Brands Featured Brands on
- Electronics & Navigation
  Featured Brands Featured Brands on Electronics & Navigation
- Anchor & Docking
  - Anchoring
    
    Anchors
    
    Anchor Lines
    
    Boat Cleats
    
    Chain & Shackles
    
    Windlasses & Rollers
    
    Boat Ladders
    
    Mooring Gear
    
    Mooring Lines
  - Boat Docking
    
    Dock Lines
    
    Boat Fenders
    
    Boat Hooks
    
    Dock Bumpers
    
    Dock Boxes
    
    Dock Ladders
    
    Dock Steps
    
    Dock Lighting
    
    Dock Hardware
    
    Mooring Whips
  Featured Brands Featured Brands on Anchor & Docking
- Safety
  Featured Brands Featured Brands on Safety
- Marine Electrical
  Featured Brands Featured Brands on Marine Electrical
- Boat Maintenance
  Featured Brands Featured Brands on Boat Maintenance
- Boats & Motors
  Featured Brands Featured Brands on Boats & Motors
- Engine Systems
  Featured Brands Featured Brands on Engine Systems
- Galley & Outdoor
  - Boat Cabin & Galley
    
    Marine Appliances
    
    Drinkware
    
    Drink Holders
    
    Galley Cookware
    
    Cabinet Hardware
    
    Storage & Organization
    
    Tabletop
    
    Boat Flooring
  - Outdoor Living
    
    Ice Chests & Coolers
    
    Grills
    
    Outdoor Seating
    
    Marine Flags
    
    Travel Gear
    
    Dog Gear
    
    Sunshade & Beach Umbrellas
- Fishing
  Featured Brands Featured Brands on Fishing
- Plumbing & Ventilation
  - Marine Plumbing
    
    Freshwater Systems
    
    Marine Hose & Hose Clamps
    
    Marine Pumps
    
    Marine Sanitation
    
    Plumbing Fittings
  - Marine Ventilation
    
    Boat Hatches & Portlights
    
    Deck Plates
    
    Heaters & Dehumidifiers
    
    Interior Fans
    
    Marine Air Conditioners
    
    Vents
- Sailing
- Boat Seating, Deck & Covers
- Clothing, Shoes & Accessories
- Boat Trailering
- Paddle & Water Sports
  - Paddle
    
    Kayaks
    
    Paddleboards
  - Water Sports
    
    Towable Tubes & Ropes
    
    Wakesurfers
    
    Wakeboards
    
    Water Skis
    
    Pool & Lake Floats
    
    Kneeboards
    
    Water Mats
    
    Swim & Snorkel Gear
    
    Water Sports Accessories
    
    Water Toys & Games

Electronics & Navigation

Anchor & Docking

Safety

Marine Electrical

Boat Maintenance

Boats & Motors

Engine Systems

Sign in

Type to search. Results will be shown below the search field.

home
categories
sailing
sailboat blocks
double blocks

Double Blocks

69 Items

Double Blocks

69 Items

Sort By Sort:

Sort By

Get it Fast

Pickup in Store

Pickup in Store In Stock at Port Clinton Change Store

We're sorry, but the Port Clinton store does not currently have products that match your search. Please try another query, or turn off the store toggle to view available products.

Same-Day Delivery

Same-Day Delivery

to 43215 not available

Filter

(69)

Series 20 Double Block with 2-Axis Shackle Head

RONSTAN

Series 20 Double Block with 2-Axis Shackle Head

2

$33.99

Pickup in store today

Same day delivery

Compare

Series 29 Utility Double Block

RONSTAN

Series 29 Utility Double Block

1

$28.99

Pickup in store today

Same day delivery

Compare

Series 50 All-Purpose Double Block

RONSTAN

Series 50 All-Purpose Double Block

12

$71.99

Pickup in store today

Same day delivery

Compare

Series 30 Orbit Double Block

RONSTAN

Series 30 Orbit Double Block

2

$37.99

Pickup in store today

Same day delivery

Compare

Series 40 All-Purpose Double Block

RONSTAN

Series 40 All-Purpose Double Block

1

$50.99

Pickup in store today

Same day delivery

Compare

40mm Carbo Air® Double Block

HARKEN

40mm Carbo Air® Double Block

8

$98.99

Pickup in store today

Same day delivery

Compare

22mm Double Micro Block with Becket

HARKEN

22mm Double Micro Block with Becket

31

$46.49

Pickup in store today

Same day delivery

Compare

Series 15 Double Block, Loop Head

RONSTAN

Series 15 Double Block, Loop Head

$23.99

Pickup in store today

Same day delivery

Compare

Series 15 Double Block with Becket, Loop Head

RONSTAN

Series 15 Double Block with Becket, Loop Head

$26.99

Pickup in store today

Same day delivery

Compare

57mm Carbo Air® Double Block with Becket

HARKEN

57mm Carbo Air® Double Block with Becket

$142.99

Pickup in store today

Same day delivery

Compare

Zircon Block, 40mm, Double

HARKEN

Zircon Block, 40mm, Double

$102.99

Pickup in store today

Same day delivery

Compare

57mm Carbo Air® Double Block

HARKEN

57mm Carbo Air® Double Block

6

$135.99

Pickup in store today

Same day delivery

Compare

Series 40 All-Purpose Double Block with Becket

RONSTAN

Series 40 All-Purpose Double Block with Becket

$76.99

Pickup in store today

Same day delivery

Compare

Series 20 Double Block with 2-Axis Shackle Head and Becket

RONSTAN

Series 20 Double Block with 2-Axis Shackle Head and Becket

1

$33.99

Pickup in store today

Same day delivery

Compare

New

16mm Double Block

HARKEN

16mm Double Block

$37.99

Pickup in store today

Same day delivery

Compare

Add to Cart

Add to Cart

45 mm Element Double Block with Swivel/Locking Shackle

HARKEN

45 mm Element Double Block with Swivel/Locking Shackle

1

$105.99

Pickup in store today

Same day delivery

Compare

76mm Midrange Double Block

HARKEN

76mm Midrange Double Block

$318.99

Pickup in store today

Same day delivery

Compare

72mm HTX Double Block

LEWMAR

72mm HTX Double Block

$322.99

Pickup in store today

Same day delivery

Compare

75mm Carbo Air® Double Block with Becket

HARKEN

75mm Carbo Air® Double Block with Becket

1

$240.99

Pickup in store today

Same day delivery

Compare

29mm Carbo Air® Double Block

HARKEN

29mm Carbo Air® Double Block

$60.99

Pickup in store today

Same day delivery

Compare

100mm Black Magic® Block, Double

HARKEN

100mm Black Magic® Block, Double

$1,726.99

Pickup in store today

Same day delivery

Compare

New

Double Carbo Block - 29 mm (1 1/8")

HARKEN

Double Carbo Block - 29 mm (1 1/8")

$52.99

Pickup in store today

Same day delivery

Compare

16mm Double Block

HARKEN

16mm Double Block

1

$42.49

Pickup in store today

Same day delivery

Compare

New

Harken 22mm Double Block

HARKEN

Harken 22mm Double Block

$42.99

Pickup in store today

Same day delivery

Compare

Add to Cart

Add to Cart

1 - 24 of 69 Items

Trending Now

Series 20 Double Block with 2-Axis Shackle Head

RONSTAN

Series 20 Double Block with 2-Axis Shackle Head

2

$33.99

Series 29 Utility Double Block

RONSTAN

Series 29 Utility Double Block

1

$28.99

Series 50 All-Purpose Double Block

RONSTAN

Series 50 All-Purpose Double Block

12

$71.99

Series 30 Orbit Double Block

RONSTAN

Series 30 Orbit Double Block

2

$37.99

Series 40 All-Purpose Double Block

RONSTAN

Series 40 All-Purpose Double Block

1

$50.99

40mm Carbo Air® Double Block

HARKEN

40mm Carbo Air® Double Block

8

$98.99

22mm Double Micro Block with Becket

HARKEN

22mm Double Micro Block with Becket

31

$46.49

Series 15 Double Block, Loop Head

RONSTAN

Series 15 Double Block, Loop Head

$23.99

Series 15 Double Block with Becket, Loop Head

RONSTAN

Series 15 Double Block with Becket, Loop Head

$26.99

57mm Carbo Air® Double Block with Becket

HARKEN

57mm Carbo Air® Double Block with Becket

$142.99

Zircon Block, 40mm, Double

HARKEN

Zircon Block, 40mm, Double

$102.99

57mm Carbo Air® Double Block

HARKEN

57mm Carbo Air® Double Block

6

$135.99

Clear ALL

Contact West Marine

Live Chat

CUSTOMER SERVICE

Help Center
Order Status
Shipping
International Orders
Returns
Recalls
Rebates
Pricing Policy

SHOP WEST MARINE

Skipper Shopping Assistant
Rewards
Gift Cards
Rigging Services
Parts Finder
Boat Motor Buyer’s Guide
Fishing Hub

Protection Plan

Buy Online Pickup In Store

West Marine Affiliate Program

Boat Graphics
Protection Plan
Buy Online Pickup In Store
Affiliate Program
Affirm FAQ
Clearance

ABOUT US

Our Story
Careers
Press Room
West Marine Pro
Store Directory

EXCLUSIVE DEALS & OFFERS

Sign Up For Email Updates

Sign Up For Text Message Updates

By submitting, you agree to receive recurring automated marketing messages (e.g. cart reminders) from West Marine at the phone number and/or email provided. To personalize your experience and measure campaign effectiveness, we track email opens, general location, and device information. Consent not required for purchase. Reply STOP to unsubscribe from texts or HELP for help. Msg frequency varies. Msg & data rates may apply. View the West Marine Privacy Policy and Terms of Use .

Privacy Policy and Notice at Collection

Web Accessibility

Do Not Sell My Information

Your Privacy Choices

CA Transparency Act

Find a Pro Terms of Service

© 2026 West Marine. All Rights Reserved.

We use cookies to optimize site functionality and improve your overall experience. Learn more in our Cookie Policy

Accept Decline

6LchHDMbAAAAAGPRKfV4mVX9FPM_gdroO62T7nWA