Aladdin O-343-0 Pool O-Ring Replacement Seal
Key Fit
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Aladdin O-343-0 O-Ring – OEM-quality replacement O-ring manufactured for pool and spa equipment sealing applications
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O-343-0 Size Specification – Designed to match equipment requiring an O-343-0 size; always verify size and groove fit before installation
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Multi-Equipment Compatibility – Commonly used across pumps, filters, valves, and union connections that reference O-343-0 dimensions
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Leak & Air Intrusion Prevention – Restores a proper watertight and airtight seal to prevent water leaks and suction-side air entry
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Chemical-Resistant Construction – Built from pool-rated elastomer material designed to withstand chlorine, heat, and pressure
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Direct Replacement Fit – Installs directly in place of worn, flattened, cracked, or swollen O-rings with no modification required
The Aladdin O-343-0 O-Ring is a precision-molded sealing component designed for use in pool and spa equipment where a dependable, watertight seal is required. Manufactured from durable, pool-rated rubber, this O-ring helps prevent water leaks, air intrusion, and pressure loss within circulation, filtration, and plumbing systems.
O-rings such as the O-343-0 are commonly used in pumps, filters, valves, unions, and other serviceable equipment connections. Over time, constant exposure to chlorinated water, temperature fluctuations, operating pressure, and routine maintenance can cause O-rings to flatten, harden, crack, or lose elasticity. When sealing integrity is compromised, leaks can develop even when fittings appear properly tightened.
Replacing worn O-rings is a simple but critical maintenance step that helps protect pool equipment, maintain system efficiency, and prevent minor leaks from becoming larger mechanical issues.
Why the O-Ring Matters
O-rings play a vital role in system sealing and reliability.
Why this matters:
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Prevents water leaks at equipment and plumbing connections
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Maintains proper internal pressure and circulation flow
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Reduces air intrusion that can cause pump priming issues
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Helps protect pumps, filters, and motors from water damage
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Supports long-term performance of pool and spa systems
Using the correct O-ring size ensures proper compression and sealing without damaging housings or fittings.
Designed for Pool & Spa Equipment Applications
The Aladdin O-343-0 O-Ring is manufactured to meet OEM dimensional and material standards required for pool and spa environments. Its rubber compound is formulated to withstand continuous exposure to treated water, temperature changes, and normal operating pressures without premature deterioration.
Aladdin is a trusted manufacturer of pool sealing components, known for accurate sizing and consistent material quality. Using the correct O-ring ensures proper fit and reliable performance during routine maintenance and equipment service.
Always verify size and equipment compatibility before installation.
Easy, Service-Friendly Installation
Replacing an O-ring is a straightforward repair that can typically be completed during routine maintenance or equipment service. The O-343-0 installs easily once the old O-ring is removed and the sealing surface is cleaned.
For best results, apply a thin layer of pool-safe silicone lubricant before installation. This helps the O-ring seat properly, reduces friction during assembly, and extends service life. Inspect sealing surfaces for debris, cracks, or damage prior to installing the new O-ring.
Product Specifications
| Specification | Details |
|---|---|
| Product Type | Pool & spa O-ring |
| Brand | Aladdin |
| Model | O-343-0 |
| Application | Pool & spa equipment sealing |
| Material | Pool-rated rubber |
| Use | Leak prevention at equipment connections |
| Condition | New |
| UPC | 601402121890 |
Buy with Confidence from Benchmark Pool Supply
When you purchase the Aladdin O-343-0 O-Ring from Benchmark Pool Supply, you’re getting a high-quality replacement component trusted by pool service professionals. We stock essential sealing parts to help keep pool and spa systems operating efficiently and leak-free.
Benchmark Pool Supply is your reliable source for professional-grade pool replacement parts and maintenance supplies.