T-H Marine Flow-Max™ Ball Scupper - ClearClick to enlarge
T-H Marine Supplies

T-H Marine Flow-Max™ Ball Scupper - Clear

Manufacturer: T-H Marine SuppliesPart #: FMS-1-0-DPSKU: 88080

  • Stainless Steel
$19.99● In stock

Add $79.01 more to qualify for free shipping.

Item #: 88080

Category: Accessories

1

● In stock — ships fast from US warehouses

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Description

Flow-Max™ Ball Scupper - Clear Replace your old worn-out flapper scupper with our new Flow-Max™ positive sealing ball scupper. A larger exit hole allows 70% more water drainage than its nearest competitor.

Multiple mounting holes make retrofits quick and easy - no filling holes or re-drilling. A neutral buoyancy ball ensures the ball won't float up and break the seal.

Meets all ABYC standards. The easy twist-off design makes cleaning debris a snap.

Simply twist counterclockwise to remove the ball cavity, clean out and twist back on. Stainless steel security pin provided for added safety.

Features: Replaces worn out flapper scuppers 70% more drainage than competitive models Twist off for easy cleaning Retrofits all hole patterns The seal is slotted to fit over 1-1/4" motor well tubes 3” Diameter x 2-1/2” H The Flow Max Scupper only comes with one screw. The screws that screw it to the boat do not come with it.

They will be different for every boat depending on the hull thickness but you will need a flat head screw. Screw included is a #4 x 1/4" Phillips Pan Head Stainless Steel Screw.

Specifications

BrandT-H Marine Supplies
Part NumberFMS-1-0-DP
EverTide SKU88080
UPC787766702323
MaterialStainless Steel

Specifications are provided by the manufacturer. Confirm fitment for your application before ordering, or contact us and we'll help.

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Returns & warranty

Returns are accepted within 30 dayson items that are unused and in their original packaging. Some items may be subject to a manufacturer restocking fee. Special-order items may not be eligible — if you're unsure, ask us before ordering.

T-H Marine Supplies productscarry the manufacturer's standard warranty. For a warranty claim or a return authorization, see our full returns policy or contact us.

Marine Plumbing & Ventilation — frequently asked

How do I size a bilge pump?
Bilge pumps are rated in gallons per hour (GPH), but actual output is lower once you account for hose length and vertical lift. Choose a pump rated well above your expected worst-case water intrusion, and consider a second, higher-capacity pump plus a float switch for automatic operation.
Can I use regular garden hose for my boat’s water system?
No. Marine plumbing uses purpose-built hose rated for the specific system — potable water, sanitation, and raw-water/bilge hoses differ in pressure rating, temperature resistance, and permeation. Using the wrong hose causes odors, leaks, or contamination.
Why is ventilation important on a boat?
Ventilation clears moisture that causes mildew and rot, and — critically on gasoline boats — clears fuel vapors from the engine compartment before starting. Blowers, cowl vents, and dorade boxes keep air moving through cabin and engine spaces for safety and comfort.

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