descriptions:<br /> &amp; high quality.<br />most compact &amp; sturdy construction.<br />single gauge pressure indicator.<br />compatible with various size of co2 cylinders.<br />up to 1500 psi lb/sq inch.<br />the thread is made according to  europe， japan and taiwan standard jis m22-14， 22mm in diameter.<br />please note this m22-14 do not fit cylinder in  and canada.<br /><br />choose:<br />no.1: regulator  rose red<br />no.2: regulator  golden<br />no.3: regulator  blue<br />no.4: regulator  black<br />no.5: regulator  silver<br />no.6: regulator  blackish green  <br />no.7: regulator  bubble counter  rose red<br />no.8: regulator  bubble counter  golden<br />no.9: regulator  bubble counter   blue<br />no.10: regulator  bubble counter  black<br />no.11: regulator  bubble counter  silver<br />no.12: regulator  bubble counter  blackish green<br /><br />package includes:<br />1pcs regulator or 1pcs regulatorbubble counte