Rubber Backwash Disc (Blind Filter) for Espresso Machines Key benefits Enables safe, effective backflushing of espresso machines by sealing the portafilter without a filter basket. Durable, high-quality rubber construction resists tearing and deformation for repeated use. Environmentally friendly, non-toxic material you can trust for regular maintenance. Small and lightweight design fits most standard portafilter handles and is easy to store. What it does and why you need it Creates a tight seal for blind/backflush cleaning cycles, allowing cleaning solution and pressure to flush group head, solenoid valves, and internal pathways. Protects internal machine components from scale and coffee buildup when used as part of a regular maintenance routine. Saves time and reduces risk of damage from improvised or incompatible seals because it is designed specifically for backwashing. Material and performance Made from high-quality, eco-friendly rubber with good toughness for long-lasting performance. Safe and non-toxic—suitable for routine contact with cleaning solutions and machine components. Easy to clean after use; rinse and dry before storage. Compatibility and size Designed to work with espresso machines; fits most standard portafilter handles (standard commercial and domestic sizes). Compact, lightweight blind disc that does not add bulk to the portafilter and is simple to install and remove. Precautions Intended for use with espresso machines only. Confirm compatibility with your portafilter size before purchase. Select this blind filter according to your machine’s actual needs and portafilter standard to ensure a proper fit. Typical use scenarios Home maintenance: Backflush a domestic espresso machine weekly to remove oils and coffee residues and keep extraction consistent. Café service maintenance: Perform end-of-shift or routine group-head backflushing to protect valves and seals in high-use commercial machines. Troubleshooting and testing: Temporarily seal the portafilter for pressure testing or diagnostic backflush procedures during servicing. What you get A reliable, reusable rubber backwash disc built for regular cleaning cycles and safe handling. Note: This is a blind/backwash disc (no holes) and must be used as part of a machine backflushing procedure. Choose according to your portafilter size and maintenance requirements.