SuiTool Pool Filter Body O-Ring for Pentair Clean & Clear CC50-CC200 — 1 Pack, 8.98" ID, Durable Elastomer Seal

If your pool or spa filter lid is showing signs of leakage, a worn or flattened body O-ring is often the culprit. This SuiTool 87300400 O-ring (also listed as 87300400Z or O-343) is molded to match the original tank clamp seal dimensions so you can quickly replace the old ring and get reliable filtration performance again.

How does this O-ring fit my Pentair Clean & Clear filter?

The SuiTool 87300400 is sized to match the sealing groove used on Pentair Clean & Clear cartridge tanks. With an inner diameter of 8.98 inches and a cross-section thickness of 0.275 inches, it’s intended to fit CC50, CC75, CC100, CC150 and CC200 models precisely.

• Part numbers referenced: 87300400 / 87300400Z, catalog O-343
• Inner diameter: 8.98 in (ensures correct seating inside the tank clamp)
• Thickness: 0.275 in (provides appropriate compression under the lid clamp)
• Made to match Pentair Clean & Clear CC series filter tanks

What material and durability can I expect from this replacement seal?

The O-ring is made from a durable elastomer formulated for repeated compression and exposure to pool water. It’s built to resist common pool chemicals and to maintain shape and sealing force longer than aged, brittle originals.

• Sturdy, resilient elastomer to resist cracking and flattening
• Engineered to maintain a watertight seal under tank clamp pressure
• Recommended to apply compatible lubricant during installation for better longevity

How do I install the SuiTool 87300400 O-ring properly?

Installation is straightforward but benefits from a clean surface and a light application of pool-safe lubricant. Remove debris, set the ring in the groove evenly, then reinstall the tank clamp and tighten evenly to avoid pinching or twisting the seal.

• Clean the seating area of the tank before fitting the new O-ring
• Use a small amount of compatible lubricant to ease installation and improve sealing
• Check the ring for even seating and avoid over-tightening the clamp
• Package includes one replacement O-ring for a single tank lid

What performance improvement should I expect after replacing the O-ring?

Replacing a compromised body O-ring restores the intended seal between the filter cap and the tank, reducing weeps and pressure loss. With the correct size and material in place, the cartridge filter can operate closer to its designed efficiency and avoid water loss at the lid interface.

• Stops leaks at the tank clamp and lid junction
• Helps maintain correct operating pressure and filtration effectiveness
• Simple, cost-effective maintenance to extend filter service life

Who is this for: Pool owners, maintenance professionals, and replacement-parts retailers who service Pentair Clean & Clear CC50–CC200 cartridge filters and need an exact-size tank body O-ring. This single-pack SuiTool 87300400 is suitable when you spot lid leaks, notice pressure inconsistencies, or replace aging seals during seasonal upkeep. For best results, clean the installation surface and use a small amount of pool-safe lubricant during fitting.