O-521 | Aladdin Seal Plate O-Ring For Jandy Pumps | R0446300

The Aladdin Seal Plate O‑Ring O‑521 is an essential replacement seal designed to maintain a leak-proof connection on Jandy/Zodiac pumps and is a direct replacement for the Jandy R0446300. Compatible with Stealth (SHPF/SHPM), PlusHP (PHPF/PHPM), FloPro, Water Feature (WFTR), Waterfall (SWF), MaxHP (MHPM), and ePump series, this high-quality elastomer ring seals the backplate (seal plate) to the pump housing for optimal pressure and efficiency. Measuring approximately 9.5″ inner diameter with a 3/16″ cross-section, it fits OEM specifications and withstands chemical exposure, safeguarding against leaks during pump operation. Whether servicing pump repairs or performing routine maintenance, the R0446300 O‑ring ensures a reliable, durable seal and is included in professional rebuild kits for complete system upkeep.

Highlights

• Direct Replacement for Jandy R0446300: Precision-molded to OEM specs for perfect compatibility with Stealth, PlusHP, FloPro, ePump, MaxHP, Waterfall, and Water Feature pump models.

• Maintains Leak-Proof Seal: Creates a secure seal between the pump housing and seal plate to support optimal system pressure and prevent water loss.

• Chemical-Resistant Elastomer: Built from durable materials engineered to resist degradation from pool chemicals and high temperatures.

• Ideal for Repairs & Maintenance: A must-have component for routine service, pump rebuilds, or leak repairs, and commonly included in full professional rebuild kits.

• Reliable Performance Fit: Measures approximately 9.5″ inner diameter with a 3/16″ cross-section, ensuring snug, long-lasting fitment for dependable pump operation.

Includes

• (1) Aladdin O-521 O-Ring

Compatibility

• Jandy Waterfeature WFTR Pumps
• Jandy Stealth SHPF SHPM Pumps
• Jandy PlusHP PHPF PHPM Pumps
• Jandy ePump JEP Pumps
• Jandy Waterfall SWF Pumps
• Jandy MaxHP MHPM Pumps

Note: This O-Ring may be compatible with your system, please refer to your owners manual to ensure compatibility.