The 8 Best 1 inch scupper Plugs (2023 reviews)

The attwood 1 inch scupper plug is long-lasting, rigid and fits well with your regular usage like a dream. This item keeps the air inside your boat and the water up under it. The standard drains are approximately 7/8" but these will adjust, by turning the handle, all the way up to. They are brass, not just plated. This plug expands when the lever is closed. The plug works and is water tight. It is great as a replacement and won’t leak at all while rolling a few acres of property.

It will keep your boat dry. Standard drains are approximately 7/8" but these will adjust, by turning the handle, all the way up to.

Why We Like This:

Fits and keeps water out of boat just like it should
Much nicer than the standard stainless steel t handle plugs
One of the new comers and featured product

Best With CABLE: Seasense 1 inch scupper Plug

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This boat plug is well made and reasonably priced. It’s a hard rubber plug and yes it would be gas and diesel resistant. This plug is for boat drains. It’s threaded straight thru. The black part is rubber so when you tighten the screw it will make the plug bigger for a bigger hole. This plug will fit into a minimum 7/8" hole, and will also work well in a 1" hole. It does the job of keeping water out of the boat. It’s great as a replacement plug for the kids water table.

Why We Like This:

Keeps the water out as expected and hoped for
Stainless steal, holds up to the elements well
New and hot release

Best For sealing A Drain Hole: Attwood Drain Plug

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The attwood drain plug gives the top-tier plug a run for their money by offering flagship specs at a much more affordable price. This boat drain plug is a well made, quality product. It probably works great at keeping the water out on a boat but not as a spark plug tube removal tool. It is best for saltwater boating. It is perfectly, inserts and removes easily.

This plug fits securely and is easy to use. The metal is all brass, including the most important part, the end washer. It is perfect for spark plug tubes.

Why We Like This:

Higher quality and easier access in tight bilges
Standard rubber expandable boat plug works great
New and hot release

Best For livewell: Seachoice 1 inch scupper Plug

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We would, of course, be remiss if we didn't mention seachoice 1 inch scupper plug for daily purpose. From anchors to anodes, Seachoice offers a wide range of products designed to make your experience on the water safer and more enjoyable. It is committed to delivering quality marine accessories and oem replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. This plug makes sure the water stays inside the tank and forces the pressure to properly use the vent tube. It will allow water to seep into the boat.

If you have a small boat that has a drain hole that this will fit in you can use it on the outside. It is easy to insert and remove than the brass plug and keeps even more water out of the hull. They suggest using it on the inside because if you get water in the boat and you’d like to drain it out while under way it’s easier to get to from the inside.

Why We Like This:

Fit nicely in transom motor well drains
Good investment for long term

Best Product: Honoson 1 inch scupper Plug

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The honoson 1 inch scupper plug's material feels more premium than its price would suggest. These boat drain plugs can be widely applied in many places, such as the bottom hatch, lifeboat, breakwater and so on, which will bring much convenience to your life. These boat drain plugs are made of quality stainless steel and rubber, not easy to break or deform, corrosion-resistant, strong and sturdy enough for you to use for a long time.

There are 2 pieces of stainless steel drain snap plugs in the package for you, which are mainly silver and black. It fits perfect no leaks and it is easy to install and remove plus make a tight seal. You can simply snap in the drain tube, which can prevent leaking under vibration effectively, so they are nice choices for your work.

It is easy to handle, with tight and long lasting effect. It comes with adjustable rotating torque, the stainless steel snap handle drain plugs are easy to handle and operate, you just need to install them from the internal beam, simply snaps in the drain tube, providing you with a nice using experience.

Why We Like This:

Enough quantity can satisfy your daily requirements
Early signs of deterioration or leakage
Stainless steel handle and rubber plug

Best Fit Drain Plug: Shoreline Marine 1 inch scupper Plug

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We would, of course, be remiss if we didn't mention shoreline marine 1 inch scupper plug for daily usage. The shoreline marine twist drain plug is made to be used with 1 " transom tubes. It provides turnkey solutions for the maritime, construction equipment, and stationary power industries. It offers a wide range of products and services including new engine, transmission and generator sales and installations. It is easy to use with just a twist of the "t" handle. They do not rust up and you do not need to use Channel locks to get them in and out.

Why We Like This:

Tightens snug and does the job
Lot of satisfied buyers

Best Quality Plug: invincible Marine 1 inch scupper Plug

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Invincible Marine offers a variety of plug for personal choice and yet maintaining quality in all the variants. Rugged, tough and reliable, invincible marine offers top of the line boating products and marine accessories at affordable prices, and is well-known for their hardworking nautical line. This plug fits 1-inch transom drains and is made of corrosion-resistant stainless steel. It is simple to use to insert in drain port and flip lever up and that's it. It will not jar loose due to boat vibration. This plug is easy to use and works great. It is made using the highest quality components.

Why We Like This:

Good quality plug with well made components
The most trusted name in marine accessories and equipment
Good investment for long term

Best value For money: Ripeng 1 inch scupper Plug

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The ripeng 1 inch scupper plug is the best cost-effective plug on the market today. The boat transom drain plug is with a considerate sealed ring, which will have a better performance on tightening or draining. The transom plug has a wide range of applications, suitable for ship stern, fish well, freezer, or boat and yacht, proving you with a better use experience and efficiency.

The garboard drain plug has good tightness, screw thread and ring provide a watertight fit, meanwhile, this threaded detachable plug allows discharge of the bilge when the ship is towed out of the water.

Why We Like This:

You can operate it without too much effort, very convenient for you
Good investment for long term