The Apollo 77C-A “Contractor Series” Ball Valve features a dezincification resistant bronze body, premium RPTFE seats and stem packing and a “Solid Ball” design that delivers true full-port flow performance. Cast and machined in Apollo’s South Carolina manufacturing plants using proven ASTM materials. Not for use with potable water systems in USA.RPTFE Seats & SealsBlowout-Proof Stem DesignAdjustable Stem PackingFull-Port "Solid Ball" DesignMade in the USA100% Factory Tested