Ball Check Valve
Install in a regulator or wye fitting to prevent beer from entering the gas lines or your regulator. 1/4" MPT end screws into regulator body or wye adapter (K035), the 1/4" MFL end fits a barbed swivel nut (K123) or our tubing kits (KX03-KX04).
Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.
I used a couple of these on a splitter out of my regulator, and when transporting a keg of homemade soda, the liquid backed all the way up the line.
I know better than to transport with CO2 connected now, but that would have been a hard lesson without this thing. Definitely worth the money.
I can't speak to the functionality as the check valve will not fit.
Kelly nailed it in a prior review...the threading/size looks close, but is not compatible with my Taprite double-gauge regulator I got with my kegging setup. Not really worth a return for a $3.99 item and the problem was noted in the October 2015 review...pays to do one's homework.
Item is as described, great for replacing worn out fittings!
No back flow. That's what I like about them!