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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
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Our Price: $115.00
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Dry Storage
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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. Call 800-298-1624 to order SeaSucker Marine dry storage part number 302-5309 or order online at Free expert support on all SeaSucker Marine products. Guaranteed Lowest Price 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 Cup Holder with Dry Box Review

Speaker 1: Today you're going to be getting a look at the SeaSucker cup holder with dry box, part number 302-5309. This cup holder dry box mounts when and where you need it, like on your boat. The cup holders are perfect for your bottles and cans, and you can remove them to hold your larger cups. The included dry box is perfect for your phones, wallets and keys, and it's portable, so you can take it with you. The dry box measures 7 and a half inches long, 3 and a half inches tall, and 3 and a half inches deep. The entire cup holder measures 19 and a quarter inches wide, 6 inches tall and 9 and a half inches deep.

The box itself features a rubber seal and 2 latches, keeping out moisture, so your valuables don't get ruined. If it happens to go overboard, it even floats. It has a pull rating of 120 pounds, so as you can see, it's not going anywhere. Also, included is a lubricant sealant. This is to help maintain your pump cylinder.

Squeeze out a little bit around the pump cylinder and depress, until it works its way in.Now that we've got all the features, I'll show you how you can install it. Before we put it into position, we want to be sure the surface we're mounting it to is clean of any dirt and debris. Also, we'll want to avoid any paint chips or any cracks. Then we can moisten the bottom of the vacuum cup. I've already gone ahead and done mine.

We can put it in place, apply a little bit of pressure, and then begin depressing the pump cylinder until the orange band disappears. Then we can take our dry box and set it in place. Now over time, the orange band may re-appear. If it does so, no problem. Just depress the pump cylinder until it disappears and you're all set to go again.When the fun is all done, SeaSucker has made it easy for you to remove.

Press in on the T-tab on either side, it simply comes off, then you can use the included cover to protect your vacuum cup. That'll do it for your look at the SeaSucker cup holder with dry box, part number 302-5309.


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  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
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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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