Fly High Check Valve Quick Twist Adapter W744

Fly High Check Valve Quick Twist Adapter W744

Fly High Check Valve Quick Twist Adapter W744


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The Fly High Check Valve Quick Twist Adapter is a two part fitting that replaces the Fly High Quick Twist / Sac Thread Adapter that comes with the Pro-X series sacs.

The Fly High Check Valve Quick Twist Adapter is an optional upgrade for Fly High Pro X Series ballast bags that replaces the standard Quick Twist Adapter. Just as easy to connect and disconnect as the standard fitting, the W744 Check Valve adapter also features an integrated check to prevent water from exiting the bag when disconnecting and connecting the pump for filling or draining.

Don't worry about water shooting back into the boat when you disconnect your Fly High Tsunami pump. Fill the sac normally using the twist connect system. When it is time to drain connect the included fitting on your pump to push through the rubber diaphragm and allow the water to come out.

If you want to keep your boat as dry as possible, this fitting is definitely for you, just remember that you'll need one for each ballast bag.

Fly High ballast fittings have been designed with you in mind. All of the fittings make connecting pumps and hoses to your Fly High Pro X Series Ballast Sacs™ a quick and simple task. No more struggling with old waterbed valves and water spilling inside the boat. Simply twist, pull, replace and you're ready to go! Fly High offers several different fittings that all work together to adapt to any of your needs.

Warranty 1 Year
Manufacturer Fly High - view brand page
Manufacturer Part # W744
Item # 33044


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  • 9/2/2016

    Works Ok.

    I bought two of these (one for each sack). The issue is, with these connected, the water pressure rotates the connection off (even if I pre-torque the connection), causing water to spray everywhere in the boat until you disconnect the pump or reconnect the hose... They work ok if you hold the connection tight, but that's a lot of holding. Not sure why these won't lock on. I've double checked all connections and gaskets/washers.... and tried removing the excess grease from the fitting, but no luck. At $40/ea, I'd expect these to seal better.

    Chris Baldwin

  • 8/29/2015

    Keep that water in check

    If you like to keep your boat nice and dry we're adding tons of water weight this is the valve for you

    Robert Daves

  • 8/11/2015

    Works As Advertized

    Works well if you fill bags using the pump. I will buy one for each sack I purchase to avoid spills.

    Ted E

  • 9/19/2014

    Great add for your portable fat sacs

    No problem with water spills on fill and empty and the hose stays connected if you contort the hose correct like the other fittings. Also with the check valve it sucks the bag flat with very little water left to dump over the side.

    Joe V

  • 8/28/2014

    They really do work

    I was so happy with them that I bought another pair for a friend. It's nice that water doesn't get all over the boat, and with boat that still has a wood core, this was key.


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