word of warning, ignore what the gauge says on that fpr, get some proper inline ones for checking. I have one the same (my sard reg died). The gauge reads very low on mine, i got some good quality inline gauges to check the pressures and discovered i was running silly pressures as the gauge was so far off.
There are a LOT! of fake SARD FPR's about of varying quality...buyer beware!
May help, but as with fake bank notes, the manufacturers get better and better fakes.
http://www.silviawa.com/forums/index.php?showtopic=39446
Also says lower down in the link that alot of them are blue that are imported, so wouldnt worry about colour. Mine is blue. It has the dots as i checked when i first got it. Not easy to spot, may be worth going for another brand if unsure. Isnt it mad that people get away with things like this....