Larger version 1" valve body 7171145, WS15X10025
uses a Rotor Disc ( 7185500, WS35X10020 )
and Seal Kit ( 7185487 ) that is one inch wider in diameter than the more common 3/4" valve body.
Rotor Disc ( 7185500 ) is 4 3/8" in diameter.
Uses Valve Cover 7171161, WS13X10013.
This Valve Body is also used on Commercial North Star models PA051,PA071
When replacing the valve body, it is recommend to replace the Seals Kit,
and the o-ring between the valve body and tank ( 7112963 ) plus some Silicone ( AP1013501 )