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1/2-28 TPI Filter Cap (Aluminum)

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  • 1/2"-28 Threads per inch muzzle end filter cap. (Aluminum)
These parts are for Wix 24003, 24744 / Napa 4003, 4744 filters only and may not fit Chinese after market filter tubes.
  • These parts are for Wix 24003, 24744 / Napa 4003, 4744 filters only and may not fit Chinese after market filter tubes.
  • These parts are for Wix 24003, 24744 / Napa 4003, 4744 filters only and may not fit Chinese after market filter tubes.
  • All of our Wix / Napa parts are designed to fit Original Wix / Napa filter tubes.
Part numbers, Wix 24003, Wix24744 / Napa 4003, Napa 4744. The filter tube dimensions and threads are identical on all of these part numbers. The only difference is the internal filter micron measurement.
Twin Tech Tactical
RRP: $29.50
$27.03 (You save $2.47)

 Product Description


These WIX 24003, 24744 / NAPA 4003, 4744 filter caps allow you to attach a WIX / NAPA filter assembly directly to your muzzle thread without the use of an adapter. They are made form 6061 T6 aluminum and are less than 1/2 the weight of our stainless steel filter caps. Weight 2.4oz. (68grams)

You can choose from (1/2-28), (1/2-36), (5/8-24), (13/16-16) caps for the muzzle end of your solvent trap, and 1/8”or ¼” female pipe threads for the drain end of your solvent trap. You can also purchase a solid cap with no hole if you don’t need a drain.

These parts are for genuine Wix 24003, 24744 / Napa 4003, 4744 filter tubes only and may not fit metric Chinese after market filter tubes.


By purchasing our products you agree to the Terms of this website.




BUYER UNDERSTANDS THAT THESE PARTS ARE FOR SOLVENT COLLECTING AND FILTERING PURPOSES ONLY, AND SHOULD NOT BE USED FOR ANYTHING ELSE. Buyer fully understands that they waive their rights to ANY claims against Twin Tech Tactical for ANYTHING. These parts are sold for the intended purpose of cleaning firearms and solvent storage ONLY! In other words Twin Tech Tactical is not responsible for how these parts are used or modified after you receive them. Any modification to, or misuse of our parts is the sole responsibility of the purchaser. Twin Tech Tactical and its employees are not responsible for the actions of their customers or the manner in which they use our parts and will NOT accept any liability in any way morally, legally, or financially. These parts are legal to posses and use as sold, and we assume and expect that all of our products purchased by you are used for their intended purposes only and discourage any modification or misuse of any kind.


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 Product Reviews

Showing reviews 1-10 of 13 | Next

  1. Looks Good

    Posted by Unknown on Sep 7th 2019

    Quality parts and shipped fast.

  2. Perfect

    Posted by Unknown on Mar 10th 2019

    Perfect fit and workmanship. Fast shipping !

  3. Quality is tops

    Posted by Alve Morris on Oct 29th 2018

    Not much to say except it's top notch quality.

  4. Thread addaptor

    Posted by Roger on May 2nd 2018

    This item is as advertised and of outstanding quality

  5. Simply amazing work

    Posted by Stuart smith on Apr 21st 2018

    The precision work is amazing and is always a perfect fit with no lack of quality or compromise on aesthetics

  6. Top products on the net !!

    Posted by Unknown on Dec 15th 2017

    These are top quality products and the fit and finish are top shelf. Highly recommend.

  7. Fits the 4003 grate

    Posted by JP on Dec 13th 2017

    It fits grate also got the 5 K cups and they work wonderful

  8. High quality product

    Posted by Unknown on Oct 8th 2017

    The end caps are beautifully machined and work great. Also received them in about 3 days, awesome!

  9. Great Product, and Shipping!!

    Posted by kj on Jul 20th 2017

    I ordered two end caps, and quality was great! Shipping was fast too!!

  10. Very good product

    Posted by Will Carter on May 9th 2017

    The end caps are super nice and very well machined. I was not sure how well the aluminum would hold up, I wanted the stainless cap, but they didn't have them in stock. I'm very please with the aluminum though. Threads hold up great.

Showing reviews 1-10 of 13 | Next

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