Pentair Compatible Replacement
86006900 Upper and Lower Bulkhead O-ring
Precision-molded 2-331-RPM seal for Pentair pool and spa filter systems
2" ID × 2-3/8" OD
3/16" Cross Section
Bulkhead Seal
Upper & Lower
This 2-331-RPM bulkhead o-ring replaces Pentair part 86006900 in Clean & Clear Plus, FNS fiberglass, FNS Plus vertical grid, Quad, and Nautilus Plus filter housings. The molded rubber seal prevents water bypass at the upper and lower bulkhead connections where the filter body meets manifold assemblies.
SPECIFICATIONS
O-ring Dimensions and Material
| Part Standard | 2-331-RPM |
| Inside Diameter | 2 inches |
| Outside Diameter | 2-3/8 inches |
| Cross Section | 3/16 inch |
| Position | Upper and lower bulkhead |
| OEM Part Number | Pentair 86006900 |
COMPATIBILITY
Fits Multiple Pentair Filter Lines
This bulkhead o-ring fits Pentair Clean & Clear Plus cartridge filters, FNS fiberglass D.E. filters, FNS Plus vertical grid D.E. filters, Pentair Quad D.E. filters, and Nautilus Plus stainless steel D.E. filter models. Verify your filter uses 2-331-RPM specification seals at the bulkhead before ordering. Compatible with both pool and spa configurations across these product families.
