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Check it out! New Mainline Floodstop protects homes from leaks & floods!

  • ALL PRODUCTS
    • Bathroom
      • Bathroom Accessories
      • Bathroom Faucets
      • Bath Waste
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      • Roman Tub Faucets
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      • Replacement Cartridge
    • Chemicals & Adhesives
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      • Oils & Greases
      • Putty
      • Thread Seal Paste & Tape
    • Commercial
      • Commercial Accessories
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      • Lead Free* Bronze Fittings
      • No-Hub Couplings
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      • Transition Couplings
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      • Inno-Tough Insulation
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      • Bar & Laundry Faucets
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      • Plastic Hammer Arresters
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      • Roof Flashings
      • Shower Pan Liner
      • Test Caps
      • Test Plugs
      • Tub Boxes & Liners
      • Washing Machine Outlet Boxes
    • Specialties
      • Bottled Water
      • Pipe Insulation
      • Roto-Molded Coolers
      • Insoles
      • Kneelmat
      • Closet Repair Kit
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      • Connectors & Risers
      • Flanges & Escutcheons
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      • Stops
    • Tools
      • Brushes
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      • Sand Cloth
      • Tape Measures
      • Wiping Cloths
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      • Brass Tubular
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      • Ball Valves
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      • Gate Valves
      • Plastic Ball Valves
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      • Leak Detection Kit
      • Vacuum Breakers
    • Ventilation
      • Elbows
      • Caps
      • Pipes
      • Guards
      • Flex Venting Components
      • Flashing
      • Termination
    • Water Systems
      • Battery Back-ups
      • Check Valves
      • Effluent Pumps
      • Expansion Tanks
      • Meter Boxes
      • Remote Sink/Drain Pump System
      • Sewage Pumps
      • Stainless Steel Clamps
      • Sump Pumps
      • Transfer Pumps
      • Utility Pumps
      • Valve Boxes
      • Well Tanks
      • Descaler Kit
      • Condensate Pumps
  • About Mainline
  • Resources
  • ProSolutions
  • Where to Buy
  • Find Parts
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Mainline logo
  • ALL PRODUCTS
    • Bathroom
      • Bathroom Accessories
      • Bathroom Faucets
      • Bath Waste
      • Bathtubs
      • Toilets
      • Roman Tub Faucets
      • Shower Drains
      • Toilet Seats
      • Tub & Shower Faucets
      • Paper Holders
      • Robe Hooks
      • Towel Bars
      • Towel Rings
      • Lavatory Sinks
      • Replacement Cartridge
    • Chemicals & Adhesives
      • Applicators & Accessories
      • Caulk
      • Cements
      • Cleaner & Primer
      • Oils & Greases
      • Putty
      • Thread Seal Paste & Tape
    • Commercial
      • Commercial Accessories
      • Commercial Faucets
      • Commercial Toilet Seats
      • Flat Top Strainers
      • Grid Drains
    • Drains
      • Cleanout Covers
      • Cleanout Plugs & Fittings
      • Snap-In Drains & Covers
      • Trap Seals
    • Fittings
      • Black Fittings
      • Black Nipples
      • Brass Nipples
      • Dielectric Unions & Flanges
      • Flexible Pipe Caps
      • Galvanized Fittings
      • Lead Free* Bronze Fittings
      • No-Hub Couplings
      • Push Connect Fittings
      • Transition Couplings
    • Hangers & Fasteners
      • Pipe Clamps, Insulators & J-Hooks
      • Pipe Hangers & Supports
      • Strut Fittings
      • Fasteners
    • HVAC
      • Inno-Tough Insulation
      • HVAC Parts
    • Kitchen
      • Bar & Laundry Faucets
      • Disposers
      • Kitchen Faucets
      • Sink Strainers
      • Stainless Steel Sinks
    • Repair Parts
      • Water Heater Parts
      • Hydrant Parts
    • Rough Plumbing
      • Air Admittance Valves
      • Fire Rated Outlet Boxes
      • Gas Valve Outlet Boxes
      • Hammer Arrestors
      • Ice Maker Outlet Boxes
      • MultiBox Outlet Boxes
      • Plastic Hammer Arresters
      • Installation Accessories
      • Roof Flashings
      • Shower Pan Liner
      • Test Caps
      • Test Plugs
      • Tub Boxes & Liners
      • Washing Machine Outlet Boxes
    • Specialties
      • Bottled Water
      • Pipe Insulation
      • Roto-Molded Coolers
      • Insoles
      • Kneelmat
      • Closet Repair Kit
    • Stops & Supplies
      • Connectors & Risers
      • Flanges & Escutcheons
      • Gas Connectors
      • Stops
    • Tools
      • Brushes
      • Gloves
      • Sand Cloth
      • Tape Measures
      • Wiping Cloths
    • Tubular
      • Brass Tubular
      • ABS & PVC Tubular
      • Drain Connectors
      • Flanges & Escutcheons
    • Valves
      • Ball Valves
      • Butterfly Valves
      • Check Valves
      • Gas Ball Valves
      • Gate Valves
      • Plastic Ball Valves
      • Tankless Water Heater Valve Kits
      • Leak Detection Kit
      • Vacuum Breakers
    • Ventilation
      • Elbows
      • Caps
      • Pipes
      • Guards
      • Flex Venting Components
      • Flashing
      • Termination
    • Water Systems
      • Battery Back-ups
      • Check Valves
      • Effluent Pumps
      • Expansion Tanks
      • Meter Boxes
      • Remote Sink/Drain Pump System
      • Sewage Pumps
      • Stainless Steel Clamps
      • Sump Pumps
      • Transfer Pumps
      • Utility Pumps
      • Valve Boxes
      • Well Tanks
      • Descaler Kit
      • Condensate Pumps
  • About Mainline
  • Resources
  • ProSolutions
  • Where to Buy
  • Find Parts
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Why Mainline?

Because we know the industry.  Because we innovate for it.  Because we adapt to it.  Because we are constantly expanding our line to support your needs.  Because we help you propel each project with quality products fit for a PRO.

Mainline. Prefered by the Pros.

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