**Restore Pressure and Prevent Leaks with the Genuine O-RING (H.1.013)** If you are experiencing inconsistent pressure or finding water leaking from your espresso machine’s internal components—a common problem indicating worn seals—the genuine La Marzocco O-RING (H.1.013) is the reliable solution. This critical sealing component is manufactured to strict OEM specifications to ensure a perfect, high-temperature seal within your machine's demanding hydraulic environment. Key features include its durable, commercial-grade rubber compound designed for longevity and resistance to heat and constant exposure to water. Regular replacement of this O-ring prevents expensive damage to surrounding parts and is an essential part of preventative maintenance for your commercial espresso machine. The O-RING (H.1.013) offers superior benefits by immediately addressing and solving problems like "espresso machine leaking water from group head" or "poor espresso extraction pressure." When installed in the proper location, this O-ring restores optimal sealing integrity, ensuring your machine maintains consistent pressure for perfect extractions. The part is designated H.1.013 and is suitable for various La Marzocco models, offering a precise fit where standard, generic rings often fail, extending the life and consistency of your high-end equipment. **Usage & Specifications:** This O-ring is primarily used to seal connections in fluid pathways where rotational or linear movement occurs, such as steam valves, water tubes, or fittings, and is a vital component for fixing a "La Marzocco leaking steam wand fitting." Given its small size and critical function, we recommend keeping spare inventory on hand. The specific Part Number is H.1.013. Invest in this authentic OEM replacement O-ring today to eliminate leaks, maintain consistent machine performance, and ensure every shot of espresso meets the highest quality standards.