The Flow-Pur OR-4 Replacement O-ring for Microbiological Filter Kit POU14MBA. This unit will also work in Watts Flomatic 500, 4000, 4200, 7000, and Watts VIH housings.

• “O” Ring Replacement for 10” RV Housings.
• Outside Diameter: 3-11/16"
• Diameter: 3-1/2"
• Inside Diameter: 3-3/8"
• Weight: 0.05 lbs.
• Color: Black.

Flow-Pur Replacement O-Ring For Microbiological Filter Kit