Bottle O-Ring
£1.00
The Bottle O-Ring is a replacement sealing O-ring for the HPA bottle-to-regulator connection — the O-ring that seals between the HPA tank neck and the regulator to prevent air loss at the bottle fitting.
Bottle O-Ring – HPA Tank / Regulator Seal
The Bottle O-Ring is the replacement sealing O-ring for the connection between an HPA tank bottle and its regulator. This O-ring sits in the seating groove at the neck of the HPA bottle where the regulator threads on — it provides the airtight seal between the bottle and regulator under HPA operating pressure. When this O-ring fails through wear, damage, or exposure to lubricants or heat, the seal between the bottle and regulator degrades — resulting in a slow or fast gas leak from the bottle/regulator interface, audible as a hissing or felt as pressure loss even when the tank valve is open.
Bottle O-rings are a consumable maintenance item — they should be inspected at each tank fill and replaced when showing signs of deformation, cracking, or compression set. A spare bottle O-ring in your kit bag is standard HPA maintenance practice. Verify the O-ring dimensions match your HPA bottle thread specification before purchase.
- Bottle O-Ring — HPA tank-to-regulator seal
- Seals the HPA bottle neck against the regulator body
- Consumable maintenance item — replace when deformed or cracked
- Standard HPA equipment maintenance part
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