NOTE: Purchase Swivel Nut set to match the diameter of your gas line.
Double gauge regulator shows both serving pressure and tank pressure. Our regulator has a shutoff with check valve and 1/4 inch flare fitting. Purchase the proper sized swivel nut set for your setup.
Homebrew setups with Corny kegs typically use the 1/4 x 1/4 nut set.
Beermeisters, Tapsters etc., that are used for serving commercial kegs will normally use the 1/4 x 5/16 swivel nut set.