The Waterway 805‑0383 O‑Ring is an OEM replacement seal designed for Clearwater (and similar) cartridge filter lids used in above ground pool systems. This durable rubber O-ring ensures a tight, leak free seal between the filter tank and lid, helping maintain proper filtration and circulation. 

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Key Features

• OEM part number: 805-0383. 

• Fits Waterway Clearwater cartridge filters (2005 & earlier) and specified above-ground tank lids. 

• Approximate internal diameter: ~14″ with cross-section ~3/16″ for correct lid grooving. 

• Made of durable rubber compatible with pool water chemistry and outdoor conditions.

• Simple drop-in replacement part for filter lid maintenance.

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Product Overview
A degraded or worn lid O-ring can lead to air infiltration, leaking, reduced filtration efficiency, or frequent pressure fluctuations in your pool system. The Waterway 805-0383 O-Ring is a cost effective fix that restores the integrity of the filter tank seal without replacing the entire lid or tank. Install it during routine seasonal service or as part of filter maintenance to help ensure the system remains properly sealed and performing at full efficiency.

For e-commerce listings, this item belongs within “Filter Replacement Parts – Lid & O-Ring Seals” and should highlight “Designed for Clearwater cartridge filters / above-ground systems”, “14″ diameter lid seal”, and “OEM original equipment quality”.