icon-cross
star-empty
star-full
checkout cart
Skip to Main Content
MARS
Mars Homepage
mobile menu toggle
Products
Products
Boxes & Covers
Boxes & Covers
All Boxes & Covers
Cast Boxes
Floor Boxes
Fan Boxes
Junction Boxes & Enclosures
Junction Boxes & Enclosures
All Junction Boxes & Enclosures
Enclosures
Knockouts
Nema 1
Nema 12
Nema 3R
Nema 4X
Nonmetallic
Nonmetallic
All Nonmetallic
Nonmetallic Boxes
Nonmetallic Covers
Nonmetallic Plaster Rings
Steel
Steel
All Steel
Steel Boxes
Steel Covers
Steel Plaster Rings
Weatherproof
Weatherproof
All Weatherproof
Weatherproof Boxes
Weatherproof Covers
Chemicals, Lubricants & Paint
Chemicals, Lubricants & Paint
All Chemicals, Lubricants & Paint
Fire Barriers
Lubricants
Paint
Sealant
Solvents & Cleaners
Conduit, Strut, Raceway & Cable Tray
Conduit, Strut, Raceway & Cable Tray
All Conduit, Strut, Raceway & Cable Tray
Conduit
Conduit
All Conduit
Aluminum Conduit
Conduit Accessories
EMT Conduit
Greenfield Conduit
IMC Conduit
Liquid Tight Conduit
Nonmetallic Conduit
PVC Conduit
Rigid Conduit
Elbows
Elbows
All Elbows
Aluminum Elbows
EMT Elbows
EMT Fittings
Fiberglass Elbows
PVC Elbows
Rigid Elbows
Raceway
Raceway
All Raceway
Metallic Raceway
Non-Metallic Raceway
Raceway Duct
Raceway Fittings and Accessories
Under Carpet Raceway
Running Thread
Strut
Trough
Trough
All Trough
Nema 1 Trough
Nema 3R Trough
Wire Basket
Wireway
Controls & Automation
Controls & Automation
All Controls & Automation
Contactors
Controls & Automation Accessories
Pushbuttons
Relays
Starters
Motors
Pumps
Fasteners & Hardware
Fasteners & Hardware
All Fasteners & Hardware
Anchors
Bolts
Box Support & Mounting
Conduit & Strut Support
Conduit & Strut Support
All Conduit & Strut Support
Beam Clamps
Cable Clips
Conduit & Cable Hangers
Mounting Hardware
Mounting Plates and Brackets
Grommets
Grounding
Nuts
Screws
Staples
Threaded Rod
Washers
Fittings
Fittings
All Fittings
Adapters, Offsets, & Reducers
Adapters, Offsets, & Reducers
All Adapters, Offsets, & Reducers
PVC Adapters, Offsets, & Reducers
Rigid & EMT Adapters, Offsets, & Reducers
Bushings
Bushings
All Bushings
MC Cable Bushings
Grounding Bushings
Plastic Bushings
Reducing Bushings
Knockout Fittings
Cable Grips
Conduit Bodies
Conduit Bodies
All Conduit Bodies
Cable Accessories
Hazardous Conduit Bodies
PVC Conduit Bodies
Rigid & EMT Conduit Bodies
Connectors
Connectors
All Connectors
Cable Connectors
Greenfield Connectors
Hazardous Connectors
Liquid Tight Connectors
MC Cable Connectors
Rigid & EMT Connectors
Couplings
Couplings
All Couplings
Greenfield Couplings
Hazardous Couplings
PVC Couplings
Rigid & EMT Couplings
Locknuts
Nipples
Fuses
Fuses
All Fuses
250V Fuses
600V Fuses
Fuse Accessories
Miniature/Specialty Fuses
Heating & Ventilation
Heating & Ventilation
All Heating & Ventilation
Controls
Heaters
Ventilation
Lighting
Lighting
All Lighting
Ballasts
Ballasts
All Ballasts
Emergency Ballasts
Fluorescent Ballasts
HID Ballasts
Drivers
Emergency Lighting
Indoor Lighting
Indoor Lighting
All Indoor Lighting
Ceiling Fixtures
Fixture Accessories
Flat Panels
Highbay Fixtures
Puck Lights
Recessed Lighting
Strip Fixtures
Tape Light
Track Lighting
Troffer Fixtures
Decorative Lighting
Under Cabinet Lighting
Lamps
Lamps
All Lamps
Fluorescent Lamps
HID Lamps
Incandescent & Specialty Lamps
LED Lamps
Lighting Recycling
Outdoor Lighting
Outdoor Lighting
All Outdoor Lighting
Fixture Accessories
Floodlights
Landscape lighting
Motion detectors
Outdoor Wall Lights
Site Lighting
Vaportite
Exterior Lighting
Temporary Lighting
Power Distribution Equipment
Power Distribution Equipment
All Power Distribution Equipment
Circuit Breakers
Circuit Breakers
All Circuit Breakers
Bolt On Circuit Breakers
Circuit Breaker Accessories
Circuit Breaker Enclosures
Molded Case Circuit Breakers
Plug In Circuit Breakers
Surge Protection
Submetering
Submetering
All Submetering
Submeters
Panels
Current Transformers
Networking Devices
Load Centers
Load Centers
All Load Centers
Load Center Accessories
Main Breaker Load Centers
Main Lug Load Centers
SPA Panels
EV Charging & Power Inlets
Metering
Panel Boards
Safety Switches
Safety Switches
All Safety Switches
240V Safety Switches
600V Safety Switches
Safety Switch Accessories
Surge Protection
Transformers
Transformers
All Transformers
Buck Boost Transformers
Class 2 Transformers
Single Phase Transformers
Three Phase Transformers
Transformer Accessories
Meter Main Combos
Capacitors
Signaling & Smoke Detection
Tools, Testing & Metering
Tools, Testing & Metering
All Tools, Testing & Metering
Hand Tools
Hand Tools
All Hand Tools
Hammers
Nut & Screwdrivers
Pliers
Sockets & Wrenches
Tape Measures
Wire Strippers, Cutters & Crimpers
Tool Kits
Levels
Fish Tape
Bits
Bits
All Bits
Combined Drill/Tap Sets
Drill Bits
Hex/Torx Keys
Screwdriver Bits
Sockets and Bits
Test Equipment
Bags
Material Handling
Batteries
Conduit Benders & Cutters
Building Supplies
Cleaning Supplies
Flashlights
Power Tools
Safety Equipment
Safety Equipment
All Safety Equipment
General Safety Supplies
Gloves
Hard Hats
Heat Protection
Lockout Tagout
Safety Glasses
Saws & Blades
Saws & Blades
All Saws & Blades
Hand Saws
Hole Saws
Knives
Reciprocating Blades
Electrical Code Books
HVAC Tools
Wire Management, Grounding & Termination
Wire Management, Grounding & Termination
All Wire Management, Grounding & Termination
Cable Ties
Grounding
Grounding
All Grounding
Exothermic Grounding
Ground Bars & Rods
Ground Clamps
Pigtails
Pulling Heads
Tape & Insulating Materials
Wire Connectors
Wire Connectors
All Wire Connectors
Aluminum Compression Connector
Butt Splice Connectors
Closed-End Crimp Connectors
Copper Compression Connector
Insulated Multitap Connectors
Insulated Service Entrance Sleeve
Insulation Displacement Connectors
Mechanical Connectors
Non-Metallic Splice Kits
Permaground Copper Grounding Crimp
Pigtail Adapter
Power Distribution Blocks
Push-In Type Wire Connectors
Splice Kits
Split Bolt Connectors
Transformer Lug Kits
Twist On Wire Connectors
Wire Identification
Wire Termination
Wire Termination
All Wire Termination
AV Connectors
Closed-End Crimp Connectors
Fork Terminals
Lug Compression Connectors
Mechanical Connectors
Ring Terminals
Wire Disconnects
Wire, Cable & Cord
Wire, Cable & Cord
All Wire, Cable & Cord
Armored Cable
Bare Wire
Communication & Control
Communication & Control
All Communication & Control
Wall Mount Cabinets & Accessories
Category Cable
Plates & Accessories
Coaxial Cable
Dimming Control Cable
Fire Alarm Cable
Landscape Cable
Patch Cords
Media Control Cable
Multi-Conductor Cable
Outdoor Control Cable
Generator Cable
Security Cable
Sound Cable
Temperature Control Cable
Thermostat Cable
Tray Cable
IMSA Cable
High Temperature Cable
Machine Tool Wire
NM-B Wire
Portable & Appliance Cords
Service Entrance Wire
Snow Melt
TF Wire
TFFN Wire
THHN Wire
THHN Wire
All THHN Wire
Aluminum THHN
Copper THHN
Wiring Devices
Wiring Devices
All Wiring Devices
Wall Plates
Receptacles
Receptacles
All Receptacles
Combination Devices
GFCI Receptacles
Locking Receptacles
Outlet Strips
Receptacle Accessories
Straight Blade Receptacles
USB Charger Receptacles
Switches
Occupancy Sensors
Dimmers
Fan Control
Lamp Holders & Sockets
PhotoControls
Plugs & Connectors
Plugs & Connectors
All Plugs & Connectors
Locking Connectors
Locking Plugs
Locking Receptacles
Straight Blade Connectors
Straight Blade Plugs
Timers
All Products
Services
Services
Vendor Managed Inventory (VMI)
Project Lighting
Power Distribution Services
Delivery & Logistics
Wire Services
Engraving Services
Markets
Markets
Residential
Commercial
Industrial
Specialty Wire
Institutional
Lighting Showroom
HVAC
Locations
Training & Events
Resources
Resources
Contact Mars Electric
Blog
Credit Application
Returns
Quick Order
Lighting Showroom Catalog
Billtrust
Careers
Our Story
Home
Fittings
Bushings
Knockout Fittings