Set of 3 Replacement O-Rings for Swimming Pool Spa Filter 86006900 2-331-RPM Compatible with Pentair Upper and Lower Walls (66.6 x 56 x 3.3 mm)

Product Size: The product has a 5.3 mm thread diameter, a 56 mm inner diameter, and a 66.6 mm outer diameter. Please allow for slight errors due to manual measurement.
OEM Replacement Number: 86006900, 2-331-RPM, which is a direct replacement for the old or broken one.
Compatibility: This product is compatible with Pentair Clean & Clear Plus pool and spa filters, Pentair FNS DE fiberglass and FNS Plus vertical grid pool/spa filters, Pentair Quad, and Nautilus Plus DE stainless steel pool and spa filters.
Easy to Install: Direct replacement with no adjustments required, perfect compatibility, and high reliability.
Product Material: This product is specially designed and manufactured from rubber, ensuring a long service life and resistance to damage.