Restore the integrity of your espresso machine's critical connections with the genuine O-Ring 1.78x56.87 EPDM 70shA FDA (Part # H.1.034). This high-quality seal is engineered from premium EPDM (Ethylene Propylene Diene Monomer) rubber, specifically formulated for superior resistance to heat, steam, and harsh cleaning chemicals commonly found in commercial espresso environments. Rated at 70 Shore A hardness, this O-ring provides the necessary compression for a perfect, long-lasting seal, preventing common issues like a "leaking espresso machine" or "steam escaping from group head." Its FDA-compliant material ensures it is safe for contact with potable water and beverages, making it an essential replacement component when you "need to stop a coffee machine leak."

Measuring precisely 1.78mm in cross-section and 56.87mm in inner diameter, this O-ring (H.1.034) is a direct OEM replacement for various La Marzocco models, guaranteeing flawless compatibility and function. When your existing seals harden, crack, or fail, leading to "inconsistent pressure during brewing," replacing them with this genuine part ensures your machine maintains optimal internal pressure and temperature stability. This component is typically used in water and steam pathways where high-temperature resistance is mandatory, making it the definitive solution for users experiencing "boiler pressure loss after maintenance."

Don't let a small, worn-out seal compromise your espresso quality or cause expensive downtime. The O-Ring 1.78x56.87 EPDM 70shA FDA (H.1.034) is an economical preventive maintenance solution that dramatically improves machine longevity and reliability. Stock up on this critical part today to avoid emergency repairs and maintain high-volume performance. For a precise fit and unmatched steam and thermal resistance, choose this genuine La Marzocco component.