<ul><li>Requirement of special tool for adjustments offers extra protection<br>against inadvertent operation</li><li>On standard products, all brass parts are electroless nickel plated</li><li>Meter-in and meter-out types easily determined by the flow<br>direction symbol on the body</li><li>One-touch fittings are standard</li><li>Available with PT or NPT ports</li></ul>