This precision-molded drain plug o-ring ensures a watertight seal for Pentair Clean & Clear, Plus, Predator, Warrior, EasyClean, FNS D.E., and Meteor pool and spa filters, as well as Pentair Push Pull and Slide valves. Manufactured to exact OEM specifications at 1-1/2" ID × 1-7/8" OD × 3/16" cross-section for reliable performance and extended service life.
TECHNICAL DETAILS
Pentair 51005000 O-Ring Specifications
| Compatibility | Pentair 51005000 drain plug replacement |
| Inner Diameter (ID) | 1-1/2 inches |
| Outer Diameter (OD) | 1-7/8 inches |
| Cross Section (CS) | 3/16 inches |
| Material | Chemical-resistant elastomer |
| Application | Pool and spa filter drain plugs, valve bodies |
| Service Environment | Chlorinated water, pH 6.8–8.2, up to 140°F |
COMPATIBILITY & APPLICATIONS
Fits Pentair Pool & Spa Equipment
This o-ring is designed as a direct replacement for Pentair part number 51005000 and fits drain plugs on Pentair Clean & Clear, Clean & Clear Plus, and Predator cartridge filters. It also seals drain assemblies on Pentair Warrior, EasyClean, FNS Plus, and Meteor sand and D.E. filter tanks. Compatible with drain ports and threaded connections on Pentair Push Pull and Slide multi-port valves. Verify your existing o-ring dimensions before ordering to ensure proper fit and seal integrity.
💧 Lubricate the o-ring lightly with silicone-based pool lubricant before installation to prevent rolling or pinching during threading. Replace annually or whenever you notice water seepage around the drain plug to avoid filter tank leaks and pressure loss.
