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Inline Check Valve Fitting  



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  • The compact design accepts hose connections directly with no adapters required, and takes up very little space, which is great for tight installations.
  • The precision machined design of our check valves means they seal perfect to 3/4" 1" or 1-1/8" hose without the use of hose barbs, which makes removal possible, and won't damage or weaken the hose.
  • The unique flapper design of our inline check valves does not impact the speed of the system, but still creates an incredibly tight seal.
  • 2011 Malibu VLX using a 3/4" check valve to ensure complete draining.

Inline Check Valve Fitting

Item #: 32003
Product Option Price Qty
$13.99
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Unhappy with metal body swing check valves, clunky threaded connections, and additional restriction common with most check valve fittings, we had this inline non-return check valve designed and built to our specs. There are a wide array of applications for non-return check valves in wakeboard ballast systems, and we have done extensive testing to ensure our new valves will perform in all situations. The full flow design of these 3/4", 1" and 1-1/8" inline check valve means they don't inhibit the flow of water when open, which makes them ideal for use in ballast systems where volume is paramount. The lightweight, fully composite, design requires no maintenance, will never rust, accepts hose connections directly with no adapters needed, and can be installed at any angle in any position (unlike more common household swing check valves) for the ultimate in installation flexibility. Simply put, if you need a check valve on your boat, these are the best option available anywhere, and are actually less expensive and perform better than the valves you can buy at home improvement stores.

Common Applications

  • Preventing Siphon Draining: When using an aerator pump in an automated ballast system, installing a check valve between the ballast bag and pump will prevent a siphon from starting, which can completely drain the bags.
  • Drain Above Waterline: When using a flexible vane reversible ballast pump, check valves can also be used to drain ballast bags above the waterline, offering visual and audible indication of when the system is draining.
  • Share One Thru-hull Connector: Another popular application for check valves is to combine the drain or vent line on two ballast bags while isolating them from each other. That prevents water that is being pumped out of one bag from flowing back down into the other while sharing a common thru-hull connector, which reduces the number of holes that have to be drilled in the boat.
This 1" inline check valve fitting is also a direct replacement for Fly High's W753 inline check valve fitting. It functions exactly the same, and almost half the price is a great value. Creates a secure connection to 1" wakeboard ballast hose using two 1" stainless steel hose clamps (sold separately, see related products) that will not leak or damage hose.
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Specifications

Creates & maintains pump prime
Prevents water backflow
Durable, lightweight Delrin® plastic
Model #: 32003

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  • Free Shipping: We offer free shipping on every order over $99 which leaves you with more gas money.
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Customer Reviews

  1. Great quality

    Review by Fred on 11/1/13
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    Value
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    These work great. I used them to setup dual bags with only 1 through-hull for both vents and drain lines. This meant only making one hole in the side of my boat instead of 4. It also allows the bags to empty out as flat as a pancake. Great product but a little expensive since I needed 7 of them.

  2. Great product for the price

    Review by Waylon on 9/8/13
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    I bought three of these to replace the threaded type check valves on the empty side of our ballast system. They work and look great with the clear 1" house that wakemakers sells. Overall great product for the money...

  3. Great product for the price

    Review by Waylon on 9/8/13
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    Value
    Quality

    I bought three of these to replace the threaded type check valves on the empty side of our ballast system. They work and look great with the clear 1" house that wakemakers sells. Overall great product for the money...

  4. Clean look

    Review by Fred on 6/10/13
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    I didn't want too many fittings on the outside of the boat so I used 3 check valves to install my reversible pump and fat sac. This allowed me to use one vent/drain thru hull and one intake thru hull. It also cleans up the look by not having as much hose everywhere in the boat. Also with a check on the vent line it really sucks the bag dry and there is no water or air left in the bag when done draining.

  5. They work excellent.

    Review by Wake on 4/28/13
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    Purchased few of these check valves, installed on vent lines on bags as well as bilge pump lines to prevent back flow. The valves work excellent. No more taking on water from bilge drains while surfing!

  6. A must have for moomba

    Review by Brandon on 6/17/12
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    If you are having an issue with draining when splitting 2 lines this is what you need! Works like it should.

  7. Works as advertised

    Review by wdr on 4/4/12
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    Bought 2 to use on my shared drain and vent line. It keeps the drain line from back filling into the vent line like a champ.

  8. does exactly what it's supposed to

    Review by shawndoggy on 7/7/11
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    I had a problem with rear bags auto-draining. With these check valves on my fill lines, that problem is a thing of the past. No perceptible increase in fill times either.

  9. Gets the job done with minimal reduction in flow

    Review by Jeff on 5/10/11
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    Just blowing through these I could tell that they weren't very restrictive. I did a bit of testing with some buckets and an 800 GPH Tsunami pump and it reduced flow by about 0.35 GPM or 8.1% in my particular test scenario. Not sure how that will translate to different flow rates though.

  10. Hose clamps / stainless

    Review by Robert on 4/30/11
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    Value

    Installed 4 puppy pumps and 4 fly-high bags, and had A LOT of hose clamps to deal with. The ones wakemakers supplied are unfortunately to light weight to handle the stiffness of the hose required. I would upgrade to the thicker band / bigger nut-screw.

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