PN 43644 - By Pass for FLECK 5810 / 5812 SERIES 1.25"* Uses Adapter Kits ( 61991-01,61991-03, 61991-05, etc ).NOTE: Not for 5800 valve ( that uses standard Fleck Bypass 60049, or 60040SS, or 60041SS )See 5810 / 5812 service manual
