Aqua Ultraviolet – PART: Union Half 2", with O-Ring (Black)
Overview
OEM replacement 2" union half for Aqua Ultraviolet UV sterilizers and accessories. Includes a fresh O-ring to restore a drip-tight seal—perfect when a union half is cracked, cross-threaded, or lost.
Key Features
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Genuine Aqua Ultraviolet 2" union half
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Includes O-ring (new seal pre-sized for the groove)
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Rugged, chemical-resistant construction (black)
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Fixes leaks and makes serviceable disconnections quick and clean
Compatibility
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Fits Aqua Ultraviolet Classic / SL bodies and accessories that use 2" slip/socket unions
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Matches the opposite factory union half on the unit (verify your union style before ordering)
Specifications
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Size: 2" union half (one side only)
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Seal: 2" union O-ring (included)
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Material: Durable, UV- and corrosion-resistant polymer (black)
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Use: External plumbing; non-submersible part
What’s Included
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(1) 2" union half — black
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(1) 2" union O-ring
Installation Notes
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Shut off the pump and relieve system pressure.
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Separate the union, remove the old O-ring, and clean sealing faces/groove.
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Lightly lube the new O-ring with silicone-safe lubricant; seat it evenly.
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Hand-tighten the union—then snug; do not overtighten.
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Pressurize and leak-test before returning to service.