This kit contains everything you need to upgrade your Rancilio Silvia to a flat shower screen. Take the work and uncertainty out of this popular modification with our ready to install kit. Stock machines use an 8mm bolt that protrudes beneath the shower screen and presses into the tamped coffee puck. This damage to the puck promotes channeling and contributes to a sour taste from under-extraction. This kit from Fruition Tamp & Coffee includes a stock Rancilio seal, pre-formed shower screen, countersunk jet breaker, high quality 304 stainless steel flat head screw, and wrench. The flathead screw will sit flush with the shower screen after installation and won't damage the coffee puck. The end result is an espresso machine which is more forgiving of technique. Improve the taste and consistency of your coffee by leaving the tamped coffee puck undisturbed! Don't stop at simply replacing your old seal and shower screen, upgrade to the flat shower screen today!