Details
https://www.overtons.com/flow-max-scupper-314573.html
Flow Max Scupper
$12.34
$12.99
Save $0.65
(
5% Off
)
Additional Information
Features
The unique design of the Flow Max offers 70% more drainage area than other scuppers. The angled ball slot allows full flow drainage, while the sure sealing ball is ground extra smooth to reduce leakage. Flow Max snaps securely into twist locks and easily twists off to clean. Scupper base is 3" in diameter and fits up to a 1 1/4" diameter drain hole. Meets ABYC specs for scupper diameter.
Show moreShow less
- Angled ball slot allows full flow drainage,
- Sealing ball is ground smooth to reduce leakage
- Snaps securely into twist locks
- Scupper base is 3" in diameter
- Meets ABYC specs for scupper diameter
Specs
Unit Weight | 0.25 lb |
---|---|
Brand | T-H Marine Supplies |

WARNING: Cancer and Reproductive Harm
For more information, go to www.P65Warnings.ca.gov/product.
Reviews
Q & A
The unique design of the Flow Max offers 70% more drainage area than other scuppers. The angled ball slot allows full flow drainage, while the sure sealing ball is ground extra smooth to reduce leakage. Flow Max snaps securely into twist locks and easily twists off to clean. Scupper base is 3" in diameter and fits up to a 1 1/4" diameter drain hole. Meets ABYC specs for scupper diameter.
Show moreShow less
- Angled ball slot allows full flow drainage,
- Sealing ball is ground smooth to reduce leakage
- Snaps securely into twist locks
- Scupper base is 3" in diameter
- Meets ABYC specs for scupper diameter
Unit Weight | 0.25 lb |
---|---|
Brand | T-H Marine Supplies |

WARNING: Cancer and Reproductive Harm
For more information, go to www.P65Warnings.ca.gov/product.
Rated 5 out of
5
by
Budicek from
Best Scupper Valve Made
A well-engineered valve that will help keep your boat dry during rainstorms.
Date published: 2013-07-29
Rated 4 out of
5
by
Captain Bligh from
I have purchased this product fbefore
Thanks for asking---Service/Delivery were just fine.
Date published: 2012-08-06
Rated 5 out of
5
by
the marine from
product is great as usual from overton's
product works as i was told it would. looks better than the original
Date published: 2012-06-03
Rated 3 out of
5
by
tklbox from
Works as suppose to!
Scuppers work same as the factory ones. By design, most scuppers let some water in as the boat is rocking and the balls are moving. I added regular plugs from the inside to solve that problem and will keep this on as back-up.
Date published: 2011-06-14
Rated 5 out of
5
by
Captain V from
Great piece of equipment
Used to replace damaged scuppers, good drainage and seals up well to stop any back flow onto deck
Date published: 2010-12-28
Rated 5 out of
5
by
Bull Bight from
A must have
A must have scupper. Replace those cheap black rubber scupper with these!
Date published: 2010-06-07
I have a 16 ft center console boat. The scupper drain holes are smaller than a wine cork. Will this scupper that fits up to 1 1/4 inch drain hole work? Is the main concern the outside diameter and the mounting holes lining up?
This scupper will work for your drain hole. I can not guarantee the mounting holes will line up.
Date published: 2017-07-14
Please tell me what the diameter of this scupper is. I need to replace my old ones(4)they are the standard flapper type, I think they are 2 3/4 " Thanks
The diameter is 3" and the height is 2 1/2".
Date published: 2015-09-23