• AquaUltraviolet PART - Ultima Filter Union O-Ring, 1.5" Aqua Ultraviolet
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Aqua Ultraviolet – PART: Ultima Filter Union O-Ring, 1.5"

Aqua Ultraviolet – PART: Ultima Filter Union O-Ring, 1.5"

$10.27 USD
$10.27 USD
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Low stock: 5 left

Aqua Ultraviolet – PART: Ultima Filter Union O-Ring, 1.5"

Overview

OEM replacement O-ring for Aqua Ultraviolet Ultima series filter unions sized 1.5". Restores a drip-tight seal between union halves to stop weeps and air draw.

Key Features

  • Genuine replacement O-ring for 1.5" Ultima filter unions

  • Resilient elastomer for reliable, long-lasting sealing

  • Seats easily; compatible with silicone-safe lubricants

  • Fixes leaks caused by flattened, cracked, or missing seals

Compatibility

  • Aqua Ultraviolet Ultima / Ultima II filters using 1.5" union connections

  • Verify union size before ordering (does not fit 2" or other sizes)

Specifications

  • Part Type: Union O-ring

  • Size: 1.5" union (nominal)

  • Material: Durable elastomer (black)

  • Use: External, wet-location plumbing (non-submersible component)

What’s Included

  • (1) 1.5" Ultima union O-ring

Installation Notes

  1. Shut off pump and relieve pressure.

  2. Separate the union and remove the old O-ring; clean groove and mating faces.

  3. Lightly coat the new O-ring with silicone-based lubricant (no petroleum).

  4. Seat evenly in the groove; reassemble the union hand-tight, then snug.

  5. Pressurize and leak-test.

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