Restore consistent water flow and prevent channeling problems in your La Marzocco espresso machine with the genuine Diffuser Block (Part # L105). This critical OEM component is the foundational part of the brew group shower system, engineered to evenly distribute water across the coffee puck. A worn or damaged diffuser block can lead to inconsistent extraction, resulting in poor shot quality and the frustrating problem of "why is my espresso machine channeling?" Replacing this part with the official La Marzocco L105 ensures water is delivered uniformly, maximizing flavor extraction and guaranteeing repeatable results shot after shot. The Diffuser Block (L105) is manufactured to exacting factory specifications, designed for durability and thermal stability. **Features** include precision-machined internal pathways and high-grade metal construction resistant to high temperatures and water deposits. **Usage:** It sits directly above the shower screen and is essential for pre-infusion success, ensuring the entire coffee bed is saturated uniformly before full pressure is applied. **Benefit:** If you are experiencing a "weak espresso shot" or uneven wetting, installing a new L105 Diffuser Block is the definitive **solution** to achieving perfect, balanced extraction. For maintenance technicians and commercial café owners, this Diffuser Block (L105) is an essential inventory item for preventative maintenance and emergency repairs. **Specs:** This part is stamped with the "L105" identifier and is compatible with specific La Marzocco commercial models. Ensure peak machine performance and eliminate downtime by choosing this official OEM replacement. Don't let inconsistent pre-infusion ruin your espresso—choose the L105 Diffuser Block for a reliable **fix for espresso machine uneven extraction**.