Fly High W731 Wally Plug – SAC Valve Threads

The Fly High W707 Gray Pro X Series Fat Sac is the most popular wakeboard ballast bag of all time and a great universal bag for many boats.

There’s a reason the Fly High W707 Gray Pro X Series Fat Sac wakeboard ballast bag is continually one of our best selling products; it offers a huge amount of weight for a great price, in a very versatile size. Looking for a better surf wake from your direct drive or v-drive boat? Want a better wakeboard wake or need more weight in the front of the boat? The Fat Sac works in almost any common location for nearly every application, which means chances are, it’s the ballast bag you’ve been looking for.

The Fly High W707 Gray Pro X Series Fat Sac is the original ballast bag that redefined new standards of weighting a wakeboard boat. The versatility of its size is the secret to the Fat Sac’s success, it’s the sweet spot for volume versus weight, which means it will fit in almost any boat, and offer a huge increase in wake size.

Common Applications

V-Drive Boats: Place the Fat Sac in the rear lockers next to the engine on 20-25′ v-drive boats for use when surfing or wakeboarding.

Direct Drive Boats: Place the fly high 750 on each side of the engine compartment for an additional 1500 pounds of pure wake enhancement that is perfectly balanced. Configure those same bags in an “L” shape next to and behind the engine compartment for surfing bliss.

Other Applications: Use the Fat Sac anywhere it will fit dimensionally that you need additional weight; it works well in the open bow walkway, on the floor or up in the bow on top of the seat cushions.

Hand Crafted Quality

Made in Milwaukee

FATSAC ballast systems are the original choice for Wakeboarding and Wakesurfing. Trusted by leading boat manufacturers, FATSAC offers consumers a line of superior products developed through careful research and testing. Our products are specifically designed to provide added safety, convenience and improved performance without causing damage to your boat. By using our advance cutting machine, welding system and Valmex material, we can assure you that your FATSAC will be extremely durable and of the highest quality. FATSAC, crafted right here in Milwaukee, is your ballast solution.

That quality seal of approval, letting you know your sacs will probably last longer than you own the boat

The Fly High Pro X Series Gravity Games Center Sac will take your Supra or Moomba to the next level with a flip of your factory ballast switch.

Product Specs