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  1. Dry Storage
  2. SeaSucker Marine
  3. Dry Boxes
  4. Medium Capacity
  5. Cup Holder
  6. Waterproof
SeaSucker Cup Holder with Dry Box - Vacuum Mount - White - 2 Cups

SeaSucker Cup Holder with Dry Box - Vacuum Mount - White - 2 Cups

Item # 302-5309
Our Price: $119.00
Dry Storage
This item qualifies for Free Shipping
Shipping Weight: 3 lbs
SeaSucker Marine White Dry Storage - 302-5309
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This cup holder lets you carry 2 drinks on your boat. It also has a waterproof, airtight dry box that keeps your cell phone, wallet, camera, and other small items safe and dry. It attaches and removes quickly with a 4.5" vacuum cup. 1-800-940-8924 to order SeaSucker Marine dry storage part number 302-5309 or order online at Free expert support on all SeaSucker Marine products. Great prices and Fastest Shipping for SeaSucker Cup Holder with Dry Box - Vacuum Mount - White - 2 Cups. Dry Storage reviews from real customers.
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SeaSucker Marine Dry Storage - 302-5309

  • Dry Boxes
  • Medium Capacity
  • SeaSucker Marine
  • Cup Holder
  • Waterproof
  • White

This cup holder lets you carry 2 drinks on your boat. It also has a waterproof, airtight dry box that keeps your cell phone, wallet, camera, and other small items safe and dry. It attaches and removes quickly with a 4.5" vacuum cup.


  • Cup holder with dry box lets you carry 2 drinks and store your valuables on your boat
  • Mounts to most non-porous, horizontal surfaces with a 4.5" vacuum cup
    • Attach or remove in seconds
  • Dry box keeps cell phones, wallets, keys, and other small items safe and dry
    • Lid with sealed rim and 2 clips keeps water out and your valuables secure
    • Clear plastic lets you see contents without opening lid
  • Remove cup holders for cleaning or to hold larger drinks
  • Hard plastic construction is lightweight yet durable
  • Waterproof lubricant helps prevent plunger from sticking
  • White color
  • Made in the USA


  • Cup holder carrying capacity: 2 drinks
  • Pull rating : 120 lbs
  • Overall cup holder dimensions: 19-1/4" wide x 6" tall x 9-1/2" deep
  • Dry box dimensions: 7-1/2" wide x 3-1/2" tall x 3-1/2" deep
  • Cup diameter: 3-1/2
  • Limited lifetime warranty

SeaSucker 2 Cup Holder

Mount this cup holder on any vertical, non-porous surface to keep your beverages close at hand and your valuables protected. The cup holder carries 2 standard-size cups, bottles, or cans and the dry box holds multiple wallets, cell phone, and other valuables.

SeaSucker 2 Cup Holder

The dry box is perfect for storing your valuables on your boat. The box is waterproof so your wallet, cell phone, camera, and other small valuables stay dry around wet passengers, or in the rain. The lid has 2 clips that prevent the box from opening unexpectedly. The clear, hard plastic construction lets you see what's inside without opening the lid and you don't have to worry about your valuables getting crushed. The dry box also includes a lanyard that makes it easy to carry to and from your boat without removing the contents.

SeaSucker 2 Cup Holder

You can easily remove both cup holders for cleaning, or to hold a drink larger than 3-1/2" diameter.

SeaSucker Vacuum Cup mounted

This cup holder is quick and easy to mount. To install the holder make sure the mounting surface is clean and place the vacuum cup on a vertical, non-porous surface on your boat then press the pump several times until the orange band disappears. To break the seal and remove the holder from your boat simply pull the T-shaped tab up and towards the center of the cup. As suction decreases over time the plunger will extend from the cup. When the orange indicator band shows simply re-pump the plunger.

MC5309 SeaSucker 2-Cup Holder with Large Dry Box - Suction Cup Mount - White

Video of SeaSucker Cup Holder with Dry Box - Vacuum Mount - White - 2 Cups

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for SeaSucker Marine Boat Accessories - Cup Holder - 302-5309 Review

Today we're going to be taking a look at the SeaSucker cup holder with dry box. This would be a great addition to your boat. The unit provides two convenient cup holders. One located on each side as well as a dry box right here in the middle. The cup holder inserts are removable for easy cleaning. The diameter of the opening is around three and a half inches, these are designed to fit most cans and bottles.

The dry box is going to provide storage for wallets, cell phones, keys, cameras and all those other items that you want to keep dry while you're out on the water. It does seal tight to keep water out. The lid is lockable here on this side with a padlock. Padlock is sold separately. If you're interested in one, you can find them at

The diameter of the lock hole is 3/16 of inch. Plenty of space in there and it's nice that it conveniently fits inside of the cup holder housing. That's removable as well. Also, has a lanyard on there. That's going to be a clear construction. This unit is going to attach vertically, which is great for the side of a console, cooler, or bait tank.

It's going to be held in place with one four and a half inch diameter vacuum mount. This mounts when and where you need it. It does come with a protective cap to keep that protected when the unit's not being used. It's going to offer a pool rating of 120 pounds, very strong and durable. It can attach or remove in just a few seconds.

It's just a nice versatile unit. Now when it comes to the overall dimensions of the unit, going edge to edge measured about 19 and 1/4 of an inch. From very back or from the mounting surface to the furthest out point, is about nine and a half inches deep. The mounting area, like the vacuum mounts going to have a diameter of around four and 7/8 of an inch when full installed. The dry box is about seven and a half inches wide, three and a half inches tall, three and a half inches deep. The product itself, the board is made from a durable starboard construction. It's white in color. It's made in the USA. It does come with waterproof lubricant to ensure that the moving components of the SeaSucker like the plunger, it's going to work for a long time and works as it's designed to. The unit is very easy to install. You want to make sure that the mount is clean and that the mounting surface is clean. Apply this to the mounting surface and then start pumping the plunger. What that does is that sucks the air out from underneath the mount creating that vacuum seal. You want to push this until that orange portion is hidden and stays hidden inside the housing. That's going to let you know that it's installed everything is as it should be and the unit's ready for use. When you're ready to release it or move it from the installed location, it's got these tabs right here one on top one on bottom. You can push in on those, that's going to break the seal allowing the unit to be removed and uninstalled. That's going to do it for today's look at the SeaSucker cup holder with large dry box.


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Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video by:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Hayden R
Installed by:
Hayden R
Employee Matthew S
Written by:
Matthew S

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