Group Head Diffuser 21 mm for Rancilio Silvia & Classe

Water diffuser for Rancilio groups

Behind the shower screen, Rancilio groups use a small threaded diffuser to break up the jet of water. If it is scaled or damaged, water hits the puck unevenly and shots channel. It is one of the cheapest parts in the group yet affects every shot.

Notched rim, threaded spigot

This diffuser is machined metal with a flat face, a notched outer rim that lets water fan out, and a short threaded spigot that screws into the group. Descale it whenever you change the screen. Scale on the diffuser restricts flow to the screen, so a fresh one can noticeably even out extraction on older machines.

Specifications

• Rancilio Diffuser 21 mm Diameter: 21 mm
• Rancilio Diffuser 21 mm Through-hole: 6 mm
• Rancilio Diffuser 21 mm Height: approx. 9 mm
• Rancilio Diffuser 21 mm Material: Stainless metal
• Rancilio Diffuser 21 mm Made in: Italy (per supplier)
• Rancilio Diffuser 21 mm Pack size: 1

Rancilio and Promac models

Listed for Rancilio Audrey, Betsy, Classe 6, 7, 8, 9 and 10, Fantasy, Millenium, Nancy, S10, S20, Silvia, Z11 and Promac Club. It works with the 57.5 mm Rancilio shower screen and the Rancilio seal and screen kit.

Group rebuilds are routine for us – see our repair and servicing page and we can fit it for you.