SEAL Used in Commercial 2", 2900 ( Kit 60128 )
, AND 2930, 3130, 3150 Valve Lower Seal Spacer Kit ( PN 60131 ).
Also the Top part of 3900 Valve uses the Fleck Seals and Spacers kit 60131 also.
** This is a single seal,
Recommend that you order the Complete KIT that includes all the SEALS and New SPACERS for your Model Valve.