The HD Shower Screen Built for La Marzocco and Synesso The Pesado HD High Diffusion La Marzocco Shower Screen brings the full 18-channel precision diffusion system to La Marzocco and Synesso machine owners. If you're running a Linea Mini, GS3, Linea Classic, Strada, or any other La Marzocco or Synesso model (except KB90-style LM and Modbar), this is the correct HD screen for your group head. The engineering is the same as across the full Pesado HD range: 18 machined channels direct water to the same locations every extraction, with outer channels that run edge-to-edge across the full 58.35mm surface, targeting the entire puck bed rather than leaving the perimeter under-saturated.

What the HD System Fixes Stock mesh shower screens on La Marzocco machines perform well — LM machines are rightly regarded as benchmarks — but the mesh geometry still introduces variability. Water path through a mesh is inherently unpredictable, varying slightly between shots depending on scale buildup, cleaning state, and water pressure fluctuation. The HD screen's channel system eliminates this: the same 18 precise channels deliver water to the same spots in the same pattern every time, creating a repeatable, uniform pre-infusion and extraction across the full puck bed. The 58.35mm diameter extends coverage significantly further than standard shower screens, which typically cover only up to 54mm in diameter, leaving 10–15% of the puck bed unreached.

What's Included, and the GS3/Mini Note The LM HD set includes one 58.35mm shower screen (304 stainless steel, 3mm thick) and one new shower screen screw — a clean, complete installation with nothing else required. GS3 and Mini/Micra owners: the discharge mesh on your machine will need more frequent cleaning when using the HD screen due to increased discharge. This doesn't affect machine performance but is worth building into your maintenance routine. Seal compatibility notice: the HD screen's 3mm thickness may cause the portafilter to lock in slightly looser than usual — this is normal and fully resolves when paired with the Pesado He[%] High Extraction Basket (recommended). If not using an HE basket, a thicker group seal or group head shim will restore the standard lock position.