Great Fermentations has a Labor Day Sale going on right now.  That sale discounts an array of items including this Mini CO2 Regulator.  The sale brings it down to $46.74.

This has a flare fitting that fits on either a ball lock or pin lock gas QD.

Use to serve your keg of homebrew on the go or as a backup in case you run out of CO2. Unlike handheld portable CO2 chargers, this mini regulator has an adjustable pressure knob.

Mini CO2 Regulator w/Flare Fitting – $54.99 $46.74

Full details – Great Fermentations Labor Day Sale

Check sale or product page for current availability & pricing

Also at Great Fermentations: Tapcooler Counter Pressure Bottle Filler! – Hands on Review

More: Recent Great Deals