Asco 24V Three-Way Solenoid Valve, Complete Complete three-way solenoid valve assembly for Rancilio machines, including the flange o-rings. This is the current Asco-manufactured version, the same valve was previously produced under the Lucifer and then Sirai names before Asco took over production. SPECIFICATIONS Voltage: 24V Configuration: Three-way Includes: flange o-rings COMPATIBILITY Fits: Rancilio machines using this 24V three-way solenoid Replaces: Rancilio part #34040241 (previously 34040151); also cross-references to earlier Lucifer and Sirai-branded valves INSTALLATION Moderate DIY job for someone comfortable with basic wiring and plumbing connections, or a quick job for a technician. PRO TIPS This valve has been sold under three different brand names over the years (Lucifer, then Sirai, now Asco) as the OEM changed hands, if you're cross-referencing an old part tag that says Lucifer or Sirai, this current Asco unit is the correct modern replacement.