Documents 975 2½”-10”

975 2½â-10â Modification Overview Production of the 975 (21/2â-10â) began in 1990 and was discontinued in 2004. Check Cover Removal Cover is o-ring sealed. Loosen…

Documents RPDA 4AN 21/2” – 6”

RPDA 4AN 21/2â â 6â Modification Overview Production of the RPDA 4AN series began in 2008. The 4AN indicates an âNâ shaped pattern. The RPDA 4AN can utilize either a…

Documents RPDA 4A 2½” – 6”

RPDA 4A 2½â â 6â Modification Overview Production of the RPDA 4A series began in 2008. The RPDA 4A can utilize either a Type I or Type II bypass. A Lead free version…

Documents 825Y(YA) 3/4”-2”. Modification Overview Production of the 825Y began in 1978 and is current. .....

825Y(YA) 3/4â-2â Modification Overview Production of the 825Y began in 1978 and is current. The 825YR (1994-2006) had replaceable check seats. ** In 2006 replaceable seats…