00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 1' 10/3 STW 30a Male to 15a Female Adapter Black #16-00553
$10.91
$13.02
Voltec 16-00553 Shore Power
Voltec 1' 10/3 STW 30a Male to 15a Female Adapter Black #16-00553 Convert 30-amp male plugs to standard 15-amp female outlets with this compact one-foot adapter. Built with 10/3 STW (Stranded Tinned Wire) for superior durability in marine, RV, and outdoor environments. The robust black housing and weather-resistant construction handle saltwater exposure and demanding conditions. UL-listed for safety and reliability when stepping down power from higher-amperage sources to standard household receptacles.
Normalized SKU: 1600553UPC Code: 711217028441
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 18" 10/3 STW 30a Male to 50a Female Adapter #16-00554
$28.91
$34.50
Voltec 16-00554 Shore Power
Voltec 18" 10/3 STW 30a Male to 50a Female Adapter #16-00554. This heavy-duty adapter bridges 30-amp male connections to 50-amp female receptacles, ideal for RV, marine, and industrial power distribution applications. Features 10/3 STW (Stranded Tinned Wire) construction rated for outdoor and wet environments. The 18-inch length provides convenient reach between power sources and equipment. UL-listed and built to withstand demanding marine and mobile applications where reliable power conversion is critical.
Normalized SKU: 1600554UPC Code: 803058005542
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 30-50a Right Angle E-Zee Grip Adapter #16-00504
$38.13
$45.76
Voltec 16-00504 Shore PowerThe E-Zee Grip handle is large and ergonomic for a comfortable grip, but still folds securely to sit flat against the plug allowing you to completely and securely close the junction box. Our handle is tough, but is replaceable allowing you longevity for continued use. Specifications include: Cord Length: 18" / Wire Gauge: 10/3 / Wire Type: STW / Wire Color: Blue/Yellow / Outlets: 1 / Plug Type:30A / Receptacle Type: 50A / Amps: 30 / Watts: 3750.
30 Amp Male, 50 Amp Female 18" Adapter with E-Zee Grip
UL and cUL approvals
Ergonomic design for easier grip
Handle folds down to fit flush with electrical enclosures
Limited lifetime warranty
Normalized SKU: 1600504UPC Code: 711217028243
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 30a Female Replacement Head #16-00581
$29.43
$35.13
Voltec 16-00581 Shore Power
Voltec 30A Female Replacement Head #16-00581 restores shore power connectivity on marine pedestals and inlet boxes. This heavy-duty connector head accepts standard 30-amp shore power cords and maintains a secure, weathertight connection to your vessel's electrical system. Built with corrosion-resistant materials to withstand salt spray and moisture exposure, it delivers reliable power transfer for onboard systems and battery charging.
A direct replacement for damaged or worn inlet heads—compatible with standard 30A pedestals. Verify your existing connector configuration and amperage rating before ordering to ensure proper electrical compatibility and safety.
Normalized SKU: 1600581UPC Code: 803058005818
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 30a Male to 15a Female Adapter 1' #16-00503
$19.84
$23.68
Voltec 16-00503 Shore Power
This 30A-to-15A step-down adapter delivers reliable power conversion with a compact 1-foot cord. The E-Zee Grip handle provides ergonomic control and folds flush for storage in tight electrical enclosures. UL and cUL certified for safety and code compliance. The replaceable nylon handle ensures long-term durability and easy maintenance in demanding marine and RV applications.
Normalized SKU: 1600503UPC Code: 711217028236
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 30a RV Extension Cord With E-Zee Grip 25' #16-00508
$92.19
$114.44
Voltec 16-00508 Shore Power
The E-Zee Grip handle is large and ergonomic for a comfortable grip, but still folds securely to sit flat against the plug, allowing you to completely and securely close the junction box. Our handle is tough, but is replaceable, allowing you longevity for continued use. Specifications include: Cord Length: 25' / Wire Gauge: 10/3 / Wire Type: STW / Wire Color: Blue/Yellow / Outlets: 1 / Plug Type: 30A / Receptacle Type: 30A / Amps: 30A / Watts: 3750.
25' 30 Amp E-Zee Grip Weatherproof Extension Cord
UL and cUL approvals
Ergonomic design for easier grip
Handle folds down to fit flush with electrical enclosures
Limited lifetime warranty
Normalized SKU: 1600508UPC Code: 711217028281
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 50A E-Zee Grip Extension Cord 15' #16-00510
$192.02
$243.88
Voltec 16-00510 Shore Power
The E-Zee Grip handle is large and ergonomic for a comfortable grip, but still folds securely to sit flat against the plug, allowing you to completely and securely close the junction box. Our handle is tough, but is replaceable, allowing you longevity for continued use. Specifications include: Cord Length: 15' / Wire Gauge: 6/3-8/1 / Wire Type: STW / Wire Color: Blue/Yellow / Outlets: 1 / Plug Type: 50A / Receptacle Type: 50A / Amps: 50A / Watts: 6250.
15' 50 Amp E-Zee Grip Weatherproof Extension Cord
UL and cUL approvals
Ergonomic design for easier grip
Handle folds down to fit flush with electrical enclosures
Limited lifetime warranty
Normalized SKU: 1600510UPC Code: 711217028304
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 50a Extension Cord 30' #16-00561
$258.42
$328.22
Voltec 16-00561 Shore PowerBlack Heavy molded on male & female 50 amp 125/250 right angle connector & cap, 4 prong straight blade configuration. This cord will not crack or become brittle in freezing temps. Cord measures to 30 feet long.
Cord will not crack or become brittle in freezing temps
Cord Length: 30 ft
Heavy molded-on male & female 50 amp - 125/250 right angle connector & cap, 4-prong straight blade configuration
Color: Black
Normalized SKU: 1600561UPC Code: 711217028502
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 50A Female Adapter Replacement Head #16-00579
$35.90
$42.85
Voltec 16-00579 Shore PowerVoltec's replacement heads are designed for adapters. Features heavy duty molded construction for reliability. Replacement heads are available in 30A Male, 30A Female, 50A Male and 50A Female.
Designed for adapters
Heavy duty molded construction
Style: 50A Female
Color: Black
Sold individually
Normalized SKU: 1600579UPC Code: 711217028618
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec 50A Male Adapter Replacement Head #16-00578
$31.84
$38.00
Voltec 16-00578 Shore PowerVoltec's replacement heads are designed for adapters. Features heavy duty molded construction for reliability. Replacement heads are available in 30A Male, 30A Female, 50A Male and 50A Female.
Designed for adapters
Heavy duty molded construction
Style: 50A Male
Color: Black
Sold individually
Normalized SKU: 1600578UPC Code: 711217028601
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec Adapter 50a Male to 30a Female 18" #16-00555
$22.80
$27.21
Voltec 16-00555 Shore Power
Voltec Adapter 50A Male to 30A Female 18" #16-00555 converts high-capacity shore power connections to match your vessel's 30-amp inlet. This adapter accepts a 50-amp male shore power plug and provides a 30-amp female receptacle, enabling compatibility when docking at facilities with oversized pedestals. The 18-inch cord length offers flexibility in positioning and routing. Constructed with heavy-duty marine materials that resist corrosion and salt-air degradation. Essential for boats equipped with 30-amp service accessing modern marina infrastructure. Verify your onboard electrical system rating and shore power source before use to ensure safe operation and prevent potential damage to vessel systems.
Normalized SKU: 1600555UPC Code: 803058005559
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec Adapter Extension Cord 10/3 5-15P/30a 15a 12" #16-00552
$16.90
$20.17
Voltec 16-00552 Shore PowerVoltec's STW 1-Outlet Adapter Extension Cord is a 5-15P/30A style adapter. It is constructed with 10/3 gauge black wire. This 12" long RV adapter extension cord has a rating of 15A and 1875W. The STW 1-Outlet Adapter Extension Cord is sold individually.
5-15P/30A style adapter
Constructed with 10/3 gauge black wire
Cord Length: 12"
Rating: 15A, 1875W
Sold individually
Normalized SKU: 1600552UPC Code: 711217028434
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip 2X RV Y-Adapter 2' 30a/50a #16-00522
$69.69
$83.63
Voltec 16-00522 Shore PowerWhen the campground pedestal does not provide a 50 Amp receptacle, use the Voltec Y-Adapter to split two 30 Amp receptacles or a 15 Amp and a 30 Amp receptacle to power your 50 Amp RV. Do not plug into a single circuit! The NEW RV Locking Line comes with Voltec's Patented E-Zee Grip series combining quality power products with innovative features that make using your RV locking cords and adapters easier to use! The E-Zee Grip series meets almost all power needs in both adapters ranging in multiple 15 Amp, 30 Amp, and 50 Amp configurations, and cords in both 30 Amp and 50 Amp in multiple lengths and configurations. Voltec's E-Zee Grip handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety.
E-Zee Grip handle is large and ergonomic for a comfortable grip; Replaceable Nylon handle
Handle sits flat into junction boxes enabling it to close completely for safety
Splits two 30 Amp receptacles or a 15 Amp and a 30 Amp receptacle to power your 50 Amp RV
2X Y-shape 30 Amp to 50 Amp RV adapter
Y-Adapter Length: 3 feet
Normalized SKU: 1600522UPC Code: 711217028373
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip 30A Extension Cord With Locking Ring 25' #16-00584
$96.48
$119.77
Voltec 16-00584 Shore PowerVoltec's Power and Lighting's Patented E-ZEE Grip series combines quality power products with innovative features that make using your RV cords and adapters easier! Our handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety. RV Extension cord with 25' of 10/3 cord, 30 Amp E-Zee Grip plug and 30 Amp Locking receptacle .
30 Amp Plug, 30 Amp Receptacle
Extension Cord - 1 Outlet
25' cord with E-Zee Grip and Locking Ring Receptacle
Easy to use and work with
Normalized SKU: 1600584UPC Code: 711217028663
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip 50A Extension Cord With Locking Ring 25' #16-00586
$323.40
$410.74
Voltec 16-00586 Shore PowerVoltec's Power and Lighting's Patented E-ZEE Grip series combines quality power products with innovative features that make using your RV cords and adapters easier! Our handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety. RV Extension cord with 25' of 10/3 cord, 50 Amp E-Zee Grip plug and 50 Amp Locking receptacle .
50 Amp Plug, 50 Amp Receptacle
Extension Cord - 1 Outlet
25' cord with E-Zee Grip and Locking Ring Receptacle
Easy to use and work with
Normalized SKU: 1600586UPC Code: 711217028687
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip 50a Extension Cord with Locking Ring 35' #16-00587
$360.82
$450.34
Voltec 16-00587 Shore PowerVoltec's Power and Lighting's Patented E-ZEE Grip series combines quality power products with innovative features that make using your RV cords and adapters easier! Our handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety. RV Extension cord with 35' of 10/3 cord, 50 Amp E-Zee Grip plug and 50 Amp Locking receptacle .
50 Amp Plug, 50 Amp Receptacle
Extension Cord - 1 Outlet
35' cord with E-Zee Grip and Locking Ring Receptacle
Easy to use and work with
Normalized SKU: 1600587UPC Code: 711217028694
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip Adapter 30a/50a 10/4 Gauge #16-00520
$32.57
$38.87
Voltec 16-00520 Shore PowerThe RV Locking Line comes with Voltec's Patented E-Zee Grip series combining quality power products with innovative features that make using your RV locking cords and adapters easier to use! The E-Zee Grip series meets almost all power needs in both adapters ranging in multiple 15 Amp, 30 Amp, and 50 Amp configurations, and cords in both 30 Amp and 50 Amp in multiple lengths and configurations. Voltec's E-Zee Grip handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety.
E-Zee Grip handle is large and ergonomic for a comfortable grip; Replaceable Nylon handle
Handle sits flat into junction boxes enabling it to close completely for safety
Utilize the L14-30, 250 Volt Receptacle on your Generator to power your 30 Amp RV
4 prong, 30 Amp to 50 Amp outlet adapter
Outlet Adapter Length: 18 inch
Normalized SKU: 1600520UPC Code: 711217028359
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip Locking Extension Cord 2' 30a #16-00590
$37.95
$45.54
Voltec 16-00590 Shore PowerVoltec's Power and Lighting's Patented E-ZEE Grip series combines quality power products with innovative features that make using your RV cords and adapters easier! Our handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety. RV Extension cord with 2' of 10/3 cord, 50 Amp E-Zee Grip plug and 50 Amp Locking receptacle.
30 Amp Plug, 30 Amp receptacle
Extension Cord - 1 Outlet
2' cord with E-Zee Grip and Locking Ring Receptacle
Easy to use and work with
Normalized SKU: 1600590UPC Code: 711217028724
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip RV Locking Adapter 2' 5-15P/30a #16-00592
$35.05
$41.83
Voltec 16-00592 Shore PowerThe RV Locking Line comes with Voltec's Patented E-Zee Grip series combining quality power products with innovative features that make using your RV locking cords and adapters easier to use! The E-Zee Grip series meets almost all power needs in both adapters ranging in multiple 15 Amp, 30 Amp, and 50 Amp configurations, and cords in both 30 Amp and 50 Amp in multiple lengths and configurations. Voltec's E-Zee Grip handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety.
E-Zee Grip handle is large and ergonomic for a comfortable grip
Replaceable Nylon handle
Handle sits flat into junction boxes enabling it to close completely for safety
10/3 Gauge 5-15P/L5-30R RV locking adapter (15 Amp to 30 Amp)
Adapter Length: 2 feet
Normalized SKU: 1600592UPC Code: 711217028748
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Voltec
Voltec E-Zee Grip RV Locking Adapter 2' 5-15P/50a #16-00593
$41.51
$49.81
Voltec 16-00593 Shore PowerThe RV Locking Line comes with Voltec's Patented E-Zee Grip series combining quality power products with innovative features that make using your RV locking cords and adapters easier to use! The E-Zee Grip series meets almost all power needs in both adapters ranging in multiple 15 Amp, 30 Amp, and 50 Amp configurations, and cords in both 30 Amp and 50 Amp in multiple lengths and configurations. Voltec's E-Zee Grip handle is large and ergonomic for a comfortable grip, and is replaceable. The handle sits flat into junction boxes enabling it to close completely for safety.
E-Zee Grip handle is large and ergonomic for a comfortable grip
Replaceable Nylon handle
Handle sits flat into junction boxes enabling it to close completely for safety
10/3 Gauge 5-15P/SS2-50R RV locking adapter (15 Amp to 50 Amp)
Adapter Length: 2 feet
Normalized SKU: 1600593UPC Code: 803058005931
Frequently Asked Questions
First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!
Yes, we offer FREE Shipping on most orders over $149 to US-48*.
Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.
- Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
- Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
- Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
- Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
- Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
- In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store
Below the price of the item, on the product page, there is a message indicating the availability of the product.
The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.
We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.
If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.
Free Shipping
On most orders $149+ to the continental 48 US states.Secure Shopping
Fast, secure checkout with a variety of payment methods.Shop with confidence
25+ years serving the marine industry.Support center
Need help? Contact us via live chat, phone, or email.