[Karren H]

I agree that lower pressure is better for longer wearing times.... I have built my own and use a small valve to cut the air flow... here's a small inline pressure regulator you could use... you would need to add a couple barbed end fittings to each side so you could attach the hoses.... then you could just dial it down to the pressure you need...

http://item.mobileweb.ebay.com/viewitem?itemId=140853282618&index=0&nav=SEARCH&nid=68919445261

did this from my phone so hope it works.... otherwise its a Brass Pneumatic Air Inline Pressure Regulator on ebay....

Here's a typical barbed fitting... your hardware store should have them...

http://item.mobileweb.ebay.com/viewitem?itemId=140783003742&index=8&nav=SEARCH&nid=02656424414