Thousands of in stock items that ship same day


YakGadget QuadBox Flex (Under Seat Storage)

$ 89.99
Excl. tax
Sold Out (Please Contact Us for Availability)
The QuadBox™ Flex is the newest standard in under seat storage for higher seated kayaks and other high sitting watercraft. 
Stock number:
SKU code:


• Fits up to 4 Plano 3700 standard, Plano 3700 waterproof, Plano Edge standard and ternminal tackle boxes. No vertical dividers so the deeper Plano Edge tubs fit as well.  

• Made with water breathable/draining material that is mildew proof. The sides include rigid foam added with plastic sheeted material in the divider, top, and bottom to maintain rigidity even when empty. 

• Includes side tool holders and 4 D rings to tether tools as well. Also includes locking straps to keep your tackle secure. The locking straps also pull forward which automattically slide out your 3700 or 3600 boxes so they are easily accessed. 

• This storage option is now compatible with the Plano Edge Flex series or any box taller than 2.125" 

Does not include tackle boxes.

Kayak compatibility list:

Hobie Pro Angler 12/14/17 - High and Low Position
Hobie Lynx
Hobie Itrek 9/11.5
Nucanoe Unlimited
Nucanoe Frontier 12/10
Jackson Knarr
Kaku Zulu and Voodoo
Big Fish 105/120/108
Bonafide SS127 - tight fit

Use commas to separate tags

Visit Mariner Sails retail store

Mariner Sails, Inc., 11110 N. Stemmons Fwy, Dallas, TX 75229, 972-241-1498

Come down to our retail store to experience the largest collection of Kayaks - be amazed by the vast options in accessories or come have a chat with our staff members - experienced sailors, kayak anglers, windsurfers - with over 100 years of combined "on-the-water" experience.

9am - 5pm Monday- Friday (Temporary Hours)
10am - 4pm Saturday (Loft Closed on Saturday)

Learn more about our store

Serving water sports enthusiasts for over forty seven years specializing in Kayaking, Windsurfing, SUP, Sailing and Sail Making.


Happy Customers


Products in Stock


Years and counting