-17% sale
Bluewater Qualifies for Free Shipping Bluewater 10-Position 150a 1/4
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 10-Position 150a 1/4" Busbar with Cover #312700-B-022 $36.43 $43.48
Download LiteratureBluewater 312700-B-022 Bus Bars10 Position 150AMP 1/4" Busbar with CoverThis busbar features dual input studs for flexible routing and higher load balancing, supporting up to 150 amps across 10 positions. It’s built for clean, high-efficiency marine power setups.The Dual Bus configuration allows you to isolate or combine circuits as needed, offering greater control and redundancy in your system.Constructed with corrosion-resistant materials, this Dual Bus solution is ideal for demanding environments like boats, off-grid cabins, or industrial panels where durability and performance are critical. Normalized SKU: 312700B022UPC Code: 810196330665Bluewater 312700-B-022 Literature Download Product Brochure
Sold out -22% sale
Pacer Group Not Qualified for Free Shipping Pacer Butt Splice 12-10 AWG Yellow Adhesive Heatshrink 500-pk #TBSE10-500
00
DAYS
00
HRS
00
MIN
00
SEC
Pacer Group Pacer Butt Splice 12-10 AWG Yellow Adhesive Heatshrink 500-pk #TBSE10-500 $241.17 $306.31
Download LiteraturePacer Group TBSE10-500 Bus Bars12-10 AWG Heat Shrink Butt Connector - 500 PackButt splices are crimp connectors used to safely connect one or more wires to another wire. Step-down butt splices are meant to connect a higher-gauge wire to a lower-gauge wire. They could also be used to connect two or more smaller-gauge wires to a single wire. When selecting which type to get, pay special attention to whether they are epoxy lined or not. Many manufacturers do not line the interior of their butt splices with meltable glue. This epoxy reacts to heat and expands, creating a superior, environmentally sealed connection.Features: Made from tinned copper and various insulations Up to 600 Volts Not applicable to all styles Operating Temp: -55°C to 125°C UL, CSA, RoHS Compliant Benefits & Protections: Impact Resistant Multiple Uses Long Term Protection Easy to Install Specifications: Wire Range: #12-10 AWG Insulation Color: Yellow Max Wire Insulation Outer Diameter (inch): 0.28" Package Size: Five hundred Normalized SKU: TBSE10500Pacer Group TBSE10-500 Literature Download Quick Reference Guide Owners Manual
-17% sale
Bluewater Qualifies for Free Shipping Bluewater Single Battery Post 3/8
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Single Battery Post 3/8" SS Stud Red #314300-R-038 $7.81 $9.32
Bluewater 314300-R-038 Bus Bars3/8" Power Post - RedA rugged single power post with a 3/8” stud, built for high-current cable termination. It’s perfect for distributing power from batteries, breakers, or busbars in demanding environments. This 3/8 power post features corrosion-resistant materials to ensure long-lasting durability even in harsh marine and industrial settings.Easy to install and designed to handle heavy electrical loads, the power post provides reliable connectivity for critical power distribution in compact spaces. Ideal for boat wiring, off-road vehicles, and other high-vibration applications where strength and security matter. Normalized SKU: 314300R038UPC Code: 810196330733
-15% sale
Bluewater Qualifies for Free Shipping Bluewater Single Battery Post 5/16
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Single Battery Post 5/16" SS Stud Black #314300-B-516 $8.28 $9.74
Bluewater 314300-B-516 Bus Bars5/16" Power Post - BlackThis power post features a 5/16” stud for secure, high-current cable connections. It’s ideal for smaller power runs or ground returns where space and reliability are key. The 5/16 power post is made from corrosion-resistant materials, ensuring long-lasting durability in marine and industrial environments.Its compact design allows easy installation in tight spaces, while providing dependable performance under heavy vibration and harsh conditions. Perfect for boats, RVs, and off-road vehicles, this power post helps maintain clean and efficient electrical systems. Normalized SKU: 314300B516UPC Code: 810196330726
-17% sale
Bluewater Qualifies for Free Shipping Bluewater Single Battery Post 3/8
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Single Battery Post 3/8" SS Stud Black #314300-B-038 $7.81 $9.32
Bluewater 314300-B-038 Bus Bars3/8" Power Post - BlackA rugged single power post with a 3/8” stud, built for high-current cable termination. It’s perfect for distributing power from batteries, breakers, or busbars in demanding environments. This 3/8 power post features corrosion-resistant materials to ensure long-lasting durability even in harsh marine and industrial settings.Easy to install and designed to handle heavy electrical loads, the power post provides reliable connectivity for critical power distribution in compact spaces. Ideal for boat wiring, off-road vehicles, and other high-vibration applications where strength and security matter. Normalized SKU: 314300B038UPC Code: 810196330719
-17% sale
Bluewater Qualifies for Free Shipping Bluewater Dual 4-Gang Busbar #313856-B-023
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Dual 4-Gang Busbar #313856-B-023 $31.22 $37.26
Bluewater 313856-B-023 Bus BarsDual 4 Gang BusbarOffering two separate 4-gang circuits in one unit, this dual terminal busbar provides flexibility for managing both positive and negative connections or isolating separate zones.Ideal for dual battery or split-load systems, this dual terminal busbar is perfect for streamlined wiring in boats, RVs, and industrial panels.Its compact footprint saves space while maintaining organized, high-capacity power distribution. Built for durability and corrosion resistance, it ensures dependable performance in demanding environments.Specifications: Current: Rated up to 250 Amp Stud Size: 3/8" and 5/16" Normalized SKU: 313856B023UPC Code: 810196330702
-17% sale
Bluewater Qualifies for Free Shipping Bluewater 4-Gang Busbar Negative Terminal Block #313756-B-023
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 4-Gang Busbar Negative Terminal Block #313756-B-023 $21.47 $25.62
Bluewater 313756-B-023 Bus BarsCommon Stud 4 Gang Negative Busbar Terminal BlockDesigned to simplify negative distribution, this 4-gang terminal block provides a central grounding point with a shared input stud. This negative bus bar is an excellent choice for managing battery or chassis returns in clean, reliable installations.Built for harsh marine and off-road environments, the negative bus bar offers corrosion resistance, easy wiring, and secure connections that hold up over time. It supports high current loads, reduces wire clutter, and ensures consistent grounding for boats, RVs, trailers, or custom electrical panels.Specifications: Current: Rated up to 250 Amp Stud Size: 5/16" Normalized SKU: 313756B023UPC Code: 810196330696
-17% sale
Bluewater Qualifies for Free Shipping Bluewater 4-Gang Positive Terminal Busbar with Cover #313738-B-023
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 4-Gang Positive Terminal Busbar with Cover #313738-B-023 $21.47 $25.62
Bluewater 313738-B-023 Bus BarsCommon Stud 4 Gang Positive Terminal Busbar with CoverThis 4-gang positive terminal block features a common stud for shared power input. This Positive Terminal Busbar is perfect for distributing power from a single source to multiple outputs, with clear labeling for safe and simple wiring.Built for marine, off-road, or industrial use, the Positive Terminal Busbar provides clean, organized, and corrosion-resistant power routing in compact spaces. Ideal for boats, RVs, and auxiliary systems that demand reliable current distribution.Specifications: Current: Rated up to 250 Amp Stud Size: 3/8" Normalized SKU: 313738B023UPC Code: 810196330689
-17% sale
Bluewater Qualifies for Free Shipping Bluewater Dual 10-Position Busbar 150a #312723-B-022
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Dual 10-Position Busbar 150a #312723-B-022 $36.43 $43.48
Bluewater 312723-B-022 Bus BarsDual Bus 10 Position Busbar 150 AmpThis busbar features dual input studs for flexible routing and higher load balancing, supporting up to 150 amps across 10 positions. It’s built for clean, high-efficiency marine power setups.The Dual Bus configuration allows you to isolate or combine circuits as needed, offering greater control and redundancy in your system.Constructed with corrosion-resistant materials, this Dual Bus solution is ideal for demanding environments like boats, off-grid cabins, or industrial panels where durability and performance are critical.Specifications: Current: Rated up to 150 Amp Stud Size: 5/16" Normalized SKU: 312723B022UPC Code: 810196330672
-17% sale
Bluewater Qualifies for Free Shipping Bluewater RGB Busbar with Cover #312404-B-022
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater RGB Busbar with Cover #312404-B-022 $31.22 $37.26
Download LiteratureBluewater 312404-B-022 Bus BarsRGB BusbarDesigned specifically for RGB lighting systems, this specialized busbar enables easy, organized wiring of multi-color LED circuits. It provides consistent, reliable connectivity for lighting control.The RGB Busbar simplifies installations by grouping terminals in a logical layout, reducing clutter and setup time. Ideal for boats, RVs, or custom panels, this solution helps prevent wiring mistakes and ensures stable power delivery to color-changing LED setups.Built for durability and clean aesthetics, it’s a must-have for anyone integrating RGB lighting into demanding environments.Specifications: Current: Rated up to 100 Amp Stud Size: 1/4" Stainless Steel Mounting Holes: 0.022 Mounting Screw Size: #10, 1/4" Distance Between Mounting Holes: 4.5" Normalized SKU: 312404B022UPC Code: 810196330658Bluewater 312404-B-022 Literature Download Product Brochure
-17% sale
Bluewater Qualifies for Free Shipping Bluewater Heavy-Duty 4-Stud Busbar Cover Red #312315-B-205
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Heavy-Duty 4-Stud Busbar Cover Red #312315-B-205 $18.29 $21.83
Bluewater 312315-B-205 Bus BarsRed Cover for 4 Stud Heavy Duty BusbarBluewater red cover for heavy-duty stud busbar, 4 gang. Normalized SKU: 312315B205UPC Code: 810196330641
-17% sale
Bluewater Qualifies for Free Shipping Bluewater Heavy-Duty 8-Stud Busbar with Black Cover #312315-B-108
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Heavy-Duty 8-Stud Busbar with Black Cover #312315-B-108 $25.62 $30.58
Bluewater 312315-B-108 Bus BarsCover for Heavy Duty 8 Stud Busbar - BlackBluewater black cover for heavy-duty stud busbar, 8 gang. Normalized SKU: 312315B108UPC Code: 810196330634
-17% sale
Bluewater Qualifies for Free Shipping Bluewater Heavy-Duty 4-Stud Busbar Cover Black #312315-B-104
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Heavy-Duty 4-Stud Busbar Cover Black #312315-B-104 $18.29 $21.83
Bluewater 312315-B-104 Bus BarsBlack Cover for 4 Stud Heavy Duty BusbarBluewater black cover for heavy-duty stud busbar, 4 gang. Normalized SKU: 312315B104UPC Code: 810196330627
-22% sale
Bluewater Qualifies for Free Shipping Bluewater Heavy-Duty 8-Stud Busbar #312315-B-008
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Heavy-Duty 8-Stud Busbar #312315-B-008 $142.56 $181.06
Download LiteratureBluewater 312315-B-008 Bus BarsHeavy-Duty 8 Stud BusbarBuilt for serious power distribution, this 8-stud heavy-duty busbar handles high current loads across multiple circuits. With corrosion-resistant studs and a rugged base, it’s ideal for organizing battery connections, inverter links, or grounding points in demanding marine and industrial setups.The heavy-duty busbar design ensures lasting durability and consistent electrical performance even in harsh environments. It is engineered to simplify complex wiring, reduce maintenance, and deliver reliable power where you need it most.Specifications: Current: Rated up to 600 Amp Maximum Voltage: 300v/48v DC Stud Size: 3/8-16 Stainless Steel Mounting Holes: 0.21 Mounting Screw Size: #10, 1/4" Distance Between Mounting Holes: 11.13" Normalized SKU: 312315B008UPC Code: 810196330610Bluewater 312315-B-008 Literature Download Product Brochure
Sold out -17% sale
Bluewater Qualifies for Free Shipping Bluewater Heavy-Duty 4-Stud Busbar #312315-B-004
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater Heavy-Duty 4-Stud Busbar #312315-B-004 $66.00 $79.20
Download LiteratureBluewater 312315-B-004 Bus BarsHeavy-Duty 4 Stud BusbarBuilt for rugged, high-load environments, this 4-gang heavy-duty stud bus bar handles large cable connections with ease. Ideal for battery systems or inverter setups where durability is critical.The heavy-duty bus bar features corrosion-resistant hardware and a robust design to withstand vibration, moisture, and salt spray.Its solid construction ensures reliable power transfer and minimal voltage drop, making it perfect for demanding marine, RV, and industrial applications where safety and performance matter.Specifications: Current: Rated up to 600 Amp Maximum Voltage: 300v/48v DC Stud Size: 3/8-16 Stainless Steel Mounting Holes: 0.21 Mounting Screw Size: #10, 1/4" Distance Between Mounting Holes: 5.26" Normalized SKU: 312315B004UPC Code: 810196330603Bluewater 312315-B-004 Literature Download Product Brochure
-15% sale
Bluewater Qualifies for Free Shipping Bluewater 5-Position Busbar Cover #312314-B-021
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 5-Position Busbar Cover #312314-B-021 $2.86 $3.36
Bluewater 312314-B-021 Bus BarsCover for 5 Position BusbarBluewater Terminal Busbar Cover for 5-position busbar, 100 AMP. Normalized SKU: 312314B021UPC Code: 810196330597
-17% sale
Bluewater Qualifies for Free Shipping Bluewater 2-Position Bus/Base Only 10mm #312311-B-020
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 2-Position Bus/Base Only 10mm #312311-B-020 $11.05 $13.19
Download LiteratureBluewater 312311-B-020 Bus Bars2 Position Bus/Base - Only 10mmThis heavy-duty dual stud busbar features two 3/8” studs for high-current connections. It supports large cable lugs and is ideal for linking batteries, power inverters, or distribution panels.The corrosion-resistant construction ensures long-lasting performance in harsh marine or off-road environments. This busbar offers a reliable solution for compact yet powerful electrical layouts where durability and efficiency are critical.Its compact footprint makes it easy to mount in tight spaces, while the high-conductivity design ensures minimal voltage drop across demanding circuits. Built for serious power distribution, it’s a staple for any professional-grade setup.Specifications: Max Voltage: 48V DC Max Amp: 200A Stud Size: 3/8″-16  Mounting Holes: 0.25 Mounting Screw Size: #10, 1/4″ Distance Between Mounting Holes: 1.425″ Installation:Mount with (2) #10, 1/4″ Screws Normalized SKU: 312311B020UPC Code: 810196330542Bluewater 312311-B-020 Literature Download Quick Reference Guide
-17% sale
Bluewater Qualifies for Free Shipping Bluewater 5/16
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 5/16" Dual Stud Busbar with Copper Link #312311-A-025 $18.86 $22.51
Download LiteratureBluewater 312311-A-025 Bus Bars5/16" Dual Stud Busbar Copper LinkThis Dual Stud Busbar features an integrated copper link that connects both studs for continuous conductivity and efficient current distribution. Engineered for high performance, it minimizes resistance while maintaining durability in demanding electrical systems. Ideal for marine and industrial applications where clean, reliable power transfer is essential.This copper busbar connector supports large gauge cable lugs and resists corrosion, even in harsh environments. Its solid construction ensures long-term stability and reduced voltage drop. Whether you’re upgrading battery banks or building out a distribution system, this copper busbar connector delivers rugged efficiency you can count on.Specifications: Max Voltage: 48V DC Max Amp: 200A Stud Size: 3/8″-16 or 5/16″ Mounting Holes: 0.25 Mounting Screw Size: #10, 1/4″ Distance Between Mounting Holes: 1.425″ Installation:Mount with (2) #10, 1/4" Screws Normalized SKU: 312311A025UPC Code: 810196333666Bluewater 312311-A-025 Literature Download Quick Reference Guide
-17% sale
Bluewater Qualifies for Free Shipping Bluewater 3/8
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 3/8" Dual Stud Busbar with Copper Link #312311-A-024 $18.86 $22.51
Download LiteratureBluewater 312311-A-024 Bus Bars3/8" Dual Stud Busbar Copper LinkThis Dual Stud Busbar features an integrated copper link that connects both studs for continuous conductivity and efficient current distribution. Engineered for high performance, it minimizes resistance while maintaining durability in demanding electrical systems. Ideal for marine and industrial applications where clean, reliable power transfer is essential.This copper busbar connector supports large gauge cable lugs and resists corrosion, even in harsh environments. Its solid construction ensures long-term stability and reduced voltage drop. Whether you’re upgrading battery banks or building out a distribution system, this copper busbar connector delivers rugged efficiency you can count on.Specifications: Max Voltage: 48V DC Max Amp: 200A Stud Size: 3/8″-16 or 5/16″ Mounting Holes: 0.25 Mounting Screw Size: #10, 1/4″ Distance Between Mounting Holes: 1.425″ Installation:Mount with (2) #10, 1/4" Screws Normalized SKU: 312311A024UPC Code: 810196333659Bluewater 312311-A-024 Literature Download Quick Reference Guide
-17% sale
Bluewater Qualifies for Free Shipping Bluewater 4-Gang Common Stud Busbar with Red Base #312303-B-025
00
DAYS
00
HRS
00
MIN
00
SEC
Bluewater Bluewater 4-Gang Common Stud Busbar with Red Base #312303-B-025 $20.79 $24.81
Bluewater 312303-B-025 Bus BarsCommon Stud Busbar 4 Gang - RedThis 4-gang common stud busbar simplifies grounding or positive distribution across multiple circuits. With a single input stud and four output studs, it’s a versatile choice for compact wiring systems.Ideal for marine, RV, and off-grid applications, this common busbar streamlines wiring and improves reliability by reducing clutter and potential failure points. Its corrosion-resistant hardware and robust design make it a dependable component in harsh environments.Whether you’re upgrading an existing panel or building a new system, this common busbar offers a clean, secure way to manage multi-circuit power connections.Specifications: Current: Rated up to 150 Amp Stud Size: 1/4" Stainless Steel Mounting Holes: 0.21 Mounting Screw Size: #10, 1/4" Distance Between Mounting Holes: 5.25" Normalized SKU: 312303B025UPC Code: 810196330511

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.