Defender US
Free Shipping on orders over $99*

Promotions

103 Listed

  1. Marinco PowerCord Plus Cordset - 50A

    $425.99 - $733.99
    2

  2. Fireboy CMD6 Marine Carbon Monoxide Alarm with Internal Battery

    $147.99
    1

  3. Marinco Reverse Y Adapter - 30A Male to 50A Female - RY504-2-30

    $382.99
    2

  4. Marinco Male to Female Y Adapter

    $187.99 - $431.99
    5

  5. Fireboy CMD6 Marine Carbon Monoxide Alarm

    $151.99
    7
  6. 10% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Hubbell Twist-Lock Ship-to-Shore Cable Set - 50A

    MSRP: $714.99 - $1,242.00
    $714.99 - $1,242.00
    4
  7. 15% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Marinco Pigtail Adapter - 125V

    MSRP: $48.99 - $201.99
    $48.99 - $181.79
    5

  8. MTI Industries Safe-T-Alert FX-4 Carbon Monoxide Alarm

    $85.99 - $160.99
    7

  9. Marinco Locking Pigtail - 30A Female to 50A Male - 121A

    $130.99
    2

  10. MTI Industries Safe-T-Alert 62 Series Carbon Monoxide Alarm

    $76.99
    2

  11. Marinco EEL ShorePower Male to Female Adapter - S30-15

    $43.99
    3

  12. Marinco EEL Y-Adapter (2) 30A Female to (1) 50A Male - Y504-2-30

    $236.99
    3

  13. Windline Shore Power Cable Holder - CH-1

    $72.99
    2

  14. Fireboy Propane Fume Detector with 1 Sensor and Solenoid

    $432.99 - $448.99
    0

  15. Marinco EEL Pigtail Adapter - 30A Female to 50A Male - P504-30

    $174.99
    1
  16. 15% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Fireboy 2 Channel Gasoline Fume Detector with Blower Control

    MSRP: $621.99 - $636.99
    $528.69 - $636.99
    0

  17. Fireboy 2-Channel Gasoline Fume Detector - G-2B-R

    $588.99
    0

  18. MTI Industries Safe-T-Alert 45 Series Dual Carbon Monoxide/Propane Alarm

    $102.99 - $107.99

  19. Fireboy Propane Fume Detector with 2 Sensors - Auto Shut-off - P-2BNV-R

    $514.99
    0
  20. 15% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Fireboy Propane Gas and Gasoline Sensor

    MSRP: $152.99 - $208.99
    $152.99 - $208.99
    1
  21. 20% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Fireboy CMD6 Marine Carbon Monoxide Alarm Interconnect

    MSRP: $169.99
    $135.99 - $169.99
    2

  22. Fireboy Propane Fume Detector with 1 Sensor

    $357.99 - $373.99
    1

  23. Marinco EEL Pigtail Adapter - 30A Female to 15A Male - P15-30

    $56.99
    3

  24. Fireboy Propane Fume Detector with 2 Sensors and Solenoid

    $614.99 - $622.99
    0

  25. Aqualarm Fire Alarm Kit

    $113.99
    0

  26. Marinco EEL Y-Adapter (2) 50A Female to (1) 50A Male - Y504-2-504

    $492.99
    0

  27. Marinco Pigtail (1) 30A Male to (3) 15A Female - 199128

    $108.99
    0

  28. Marinco EEL Pigtail Adapter - 50A Female to 30A Male - P30-504

    $204.99
    0

  29. Marinco EEL Y-Adapter (2) 50A Female to (1) 50A Male - Y504-2-503

    $508.99
    0
  30. 10% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Fireboy Single Channel Propane Fume Detector with 1 Sensor

    MSRP: $349.99 - $357.99
    $314.99 - $322.19
    1

  31. Marinco EEL Pigtail Adapter - 50A Female to 50A Male - P504-503

    $247.99
    0

  32. Marinco EEL Y-Adapter (2) 30A Female to (1) 30A Male - Y30-2-30

    $213.99
    0

  33. MTI Industries Safe-T-Alert 25 Series Dual Carbon Monoxide/Propane Alarm

    $85.99 - $206.99
    1

  34. Camco Power Grip Marine Dogbone Locking Adapter - 12"

    $62.99 - $64.99

  35. MTI Industries Safe-T-Alert 35 Series Dual Carbon Monoxide/Propane Alarm

    $102.99 - $197.99

  36. Marinco EEL ShorePower Male to Female Adapter - S15-30

    $43.99
    1

  37. MTI Industries Safe-T-Alert Marine Gas Fume/Fire/Bilge Water Alarm - MGD-1XL

    $236.99

  38. Fireboy Propane/CNG Control with Solenoid Valve

    $225.99 - $283.99
    0

  39. Marinco Locking Pigtail - 50A Female to 30A Male - 117A

    $175.99
    0

  40. Xantrex Solar Starter Cable Kit - 708-0150

    $114.99
    0

  41. Marinco EEL Pigtail Adapter -15A Female to 30A Male - P30-15

    $62.99
    1

  42. Hubbell Y-Adapter - 2-30A Male to 1-50A 125/250V Female - YQ230

    $712.99
    2

  43. MTI Industries Safe-T-Alert 20 Series Propane Alarm

    $59.99

  44. Marinco EEL Pigtail Adapter - 30A Female to 50A Male - P503-30

    $149.99
    1
  45. 15% off MSRPMSRP (Manufacturer's Suggested Retail Price)

    Set by the manufacturer and displayed for comparison purposes only.

    Fireboy Methane Fume Detector LED Display

    MSRP: $720.99 - $811.99
    $612.84 - $811.99
    0

  46. Marinco Pigtail 50A Female to 50A Male - 123A

    $184.99
    0

  47. MTI Industries Safe-T-Alert 30 Series Propane Alarm

    $63.99 - $65.99

  48. MTI Industries Safe-T-Alert 85 Series Dual Carbon Monoxide/Propane Alarm

    $72.99 - $75.99
 
1 / 3Next

2Filters

Clear All
  1. Departments: Security ×
  2. Departments: Electrical ×
Departments
Manufacturer
Price
5.58
6622.99
Type
More Ways To Shop
Availability
Fulfillment
Amperage (A)
Voltage (V)

Change Locale

United States - English Shop in currency: USD
Canada - English Shop in currency: CAD
Canada - Français Shop in currency: CAD

Explore

Guides
Brands

Helpful Information

Track My Order
Shipping Policy
Return Policy
Outlet Store
Commercial Accounts

Get In Touch

Customer Service
1-800-435-7180
Send a Message

Resources

Gift Cards
Privacy Policy
Conditions of Use
Accessibility Statement

Stay Connected

X
Facebook
Instagram
YouTube
Toggle desktop/mobile version
2026 © Defender. All Rights Reserved.