Fleck (12977) O-ring BLFC Fitting - AS568-013
Fleck 5600 O-Ring BLFC Fitting (Model 12977)
Engineered to Standard
| Model Number | Fleck 12977 |
| Standard | AS568-013 |
| Outer Diameter | 9/16 inch |
| Inner Diameter | 7/16 inch |
| Cross Section | 1/16 inch |
| Cross Reference | Danco #41 |
| Application | BLFC Fitting Seal |
Fits These Systems
This o-ring seals the BLFC (brine line float connection) fitting on Fleck 5600 control valves and compatible Fleck softener models. Use wherever AS568-013 or Danco #41 o-rings are specified in Fleck valve assemblies. Common replacement part for brine draw and injector connections.
When to Replace
Replace this o-ring during any BLFC fitting service, when you notice water weeping at the brine line connection, or during routine control valve maintenance. Lubricate lightly with silicone grease before installation to ensure proper seal. Inspect annually and replace if the rubber shows hardening, cracking, or compression set.
OEM Standard
True AS568-013 dimensions match Fleck factory specifications
Leak Prevention
Precision seal at critical brine line connection points
Easy Service
Standard size simplifies replacement during valve maintenance
Fleck 5600 O-Ring BLFC Fitting (Model 12977)
Engineered to Standard
| Model Number | Fleck 12977 |
| Standard | AS568-013 |
| Outer Diameter | 9/16 inch |
| Inner Diameter | 7/16 inch |
| Cross Section | 1/16 inch |
| Cross Reference | Danco #41 |
| Application | BLFC Fitting Seal |
Fits These Systems
This o-ring seals the BLFC (brine line float connection) fitting on Fleck 5600 control valves and compatible Fleck softener models. Use wherever AS568-013 or Danco #41 o-rings are specified in Fleck valve assemblies. Common replacement part for brine draw and injector connections.
When to Replace
Replace this o-ring during any BLFC fitting service, when you notice water weeping at the brine line connection, or during routine control valve maintenance. Lubricate lightly with silicone grease before installation to ensure proper seal. Inspect annually and replace if the rubber shows hardening, cracking, or compression set.
OEM Standard
True AS568-013 dimensions match Fleck factory specifications
Leak Prevention
Precision seal at critical brine line connection points
Easy Service
Standard size simplifies replacement during valve maintenance
Original: $0.95
-65%$0.95
$0.33Description
Fleck 5600 O-Ring BLFC Fitting (Model 12977)
Engineered to Standard
| Model Number | Fleck 12977 |
| Standard | AS568-013 |
| Outer Diameter | 9/16 inch |
| Inner Diameter | 7/16 inch |
| Cross Section | 1/16 inch |
| Cross Reference | Danco #41 |
| Application | BLFC Fitting Seal |
Fits These Systems
This o-ring seals the BLFC (brine line float connection) fitting on Fleck 5600 control valves and compatible Fleck softener models. Use wherever AS568-013 or Danco #41 o-rings are specified in Fleck valve assemblies. Common replacement part for brine draw and injector connections.
When to Replace
Replace this o-ring during any BLFC fitting service, when you notice water weeping at the brine line connection, or during routine control valve maintenance. Lubricate lightly with silicone grease before installation to ensure proper seal. Inspect annually and replace if the rubber shows hardening, cracking, or compression set.
OEM Standard
True AS568-013 dimensions match Fleck factory specifications
Leak Prevention
Precision seal at critical brine line connection points
Easy Service
Standard size simplifies replacement during valve maintenance
