William’s Brewing Inline Check Valve – keep things going the right way – Barb for 1/4″ tubing OR DuoTight… $2.50 via Clearance Sale

In Line Check Valve

Inline Check Valve via William’s Brewing

More Info

From the product description, check product page for current description, price and availability:

This inline check valve features ¼” Duotight compatible barbs, and releases at 10 PSI. Useful in draft systems that operate at dispensing pressures of 10 PSI or higher. For gas or water lines. Overall length 4¼”

To use this with the Duotight system and 8mm EvaBarrier tubing, you will need two Z84 Duotight reducers (see the above picture).


  • It is possible for beer to flow backwards through CO2 lines.  This check valve helps keep your beer out of those lines and helps to prevent dirty gas lines and QDs and a possible mess.
  • This can be used 1/4″ tubing OR with DuoTight Fittings.  If you’re using the smaller 8mm EVABarrier tubing you’ll need reducers, explained on the product page.
  • DuoTights are awesome.  Check out my extensive hands on review… Hands on Review: Kegland DuoTight Fittings & EVABarrier Tubing!

William’s Brewing Clearance Sale!

  • William’s Brewing has launched a huge Fall Clearance Sale.  William’s Brewing Fall Clearance Sale!
  • No coupon code is necessary.  Supplies may be limited.
  • This is included in the mix and on sale for just $2.50.
  • Shipping is free or reasonably priced flat rate to addresses in the contiguous US depending on your order size for most items.
  • Get a Freebie:  Place an order with a subtotal of $50.00 or more and enter web coupon code beardana at checkout and you’ll get a free beardana.  No need to add the beardana to your cart.  Just put together an order of $50 or more and apply coupon code beardana at checkout and it will be automatically added to your cart.


Check sale or product page for current availability & pricing

Also: Kegerator Tips & Gear | Keg Repair Part #s | Recent Keg Finds

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Visit William’s Brewing – Web Only Clearance Sale

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Hands on Review: Kegland DuoTight Fittings & EVABarrier Tubing!

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