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…

475, 475V 2½â-3â Modification Overview Production of the 2½ - 3â sizes began in 1998. The lead free version (XL) was introduced in 2011. Single Access Cover Removal…

975, 975XL ¾â-2â Modification Overview Production of the original 975 began in 1990. This version had buna-n check discs and did not have replaceable check seats. Discontinued…

475, 475V, 475XL 4â-10â Modification Overview Production of the 4 - 10â sizes began in 1998 and is current. The lead free version (XL) was introduced in 2011. Single Access…

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…

475, 475V 2½â-3â Modification Overview Production of the 2½ - 3â sizes began in 1998. The lead free version (XL) was introduced in 2011. Single Access Cover Removal…

860 (LF), 880 ½â- 2â Modification Overview Production of the ½ - 2â 860 series began in 1997 and is current. The 880 is an âNâ shaped version. A lead free version…

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…

375AST 21/2â-10â Modification Overview The stainless steel (ST) series was introduced in 2011. This version has a stainless steel body. ***(Parts do not interchange with…