This genuine Rocket Espresso 3/8 BSPP male to 1/8 BSPP male fitting, part A229904374, bridges mismatched thread sizes when installing gauges, sensors or drain lines. Machined from food-grade OT58 brass, it seals tight with minimal PTFE tape and its compact shoulder clears tight boiler spaces.
Key Features & Benefits
Low-lead OT58 brass – food-safe and corrosion-resistant
3/8 M × 1/8 M step-down – connects gauges, valves and hoses
Compact profile – ideal for prosumer and commercial chassis
Precision threads – leak-free seal with light torque
Service-kit essential – perfect for retrofits and emergency fixes
Slip this adapter into place and restore perfect pressure control in minutes.
Looking for similar items or different specifications for this Rocket Espresso 3/8- to 1/8-inch Male Fitting A229904374 – Step-Down Brass Adapter?
Explore our full range in the Rocket category
*
This part is compatible to the original part number. Part numbers are always leading.
Dial-in flavour and guard your hydraulic system with this factory expansion valve, part R999904983. Threaded into the pump line on Boxer and RE machines, the precision spring-and-seat assembly vents excess brew pressure back to the reservoir, keeping your gauge rock-steady around 9 bar while sparing pumps and seals from strain. Low-lead brass construction...
This Rocket Espresso original tap rod includes an O-ring and is used in various domestic machine models. With a precise fit and high-quality materials, it ensures optimal functionality for steam and water tap assemblies.
OEM part number: R229905953
Overall length: 69 mm
Knob fitting: 7×7 mm
Includes O-ring
Pin for M6 screw
Made in Italy...
Finish every shot cleanly and protect your coffee flavour with this factory bottom-outlet valve, part C219903081. Fitted to Rocket’s Group M brew assemblies, the valve opens at the end of extraction to relieve group pressure, drying the puck and freeing up the next dose. Precision-machined brass threads seat perfectly in the group block, while the...
Give your flagship R Nine One a fresh electronic heartbeat with this factory-tuned control board, part M199906288. Designed to run flawlessly on both 230 V and 115 V supplies, the PCB synchronises pumps, heating elements and pressure-profiling algorithms with the split-second precision that defines Rocket’s statement machine. Robust copper traces handle...
Pull balanced double shots every time with this authentic Rocket Espresso portafilter, part M699904832. Machined from heavy chrome-plated brass, it arrives ready for service with a 3/8″ threaded double spout, M12 × 5.7 mm locking wings, return spring and a 14 g basket—perfect for classic Italian doppios or precision dial-ins with specialty beans. The...
Put your brew circuit back under full control with this factory-spec 2-way solenoid valve, part M19905791. Featuring 1/4″ BSP parallel ports and a 2.5 mm orifice, the 501C-series valve regulates fill and discharge with millisecond accuracy, ensuring stable pressure and cleaner extractions. The matched 491514Q3 D4G coil draws just 13 / 11 W at 220–240 V,...
If your screen flickers, lags or drops out entirely, chances are the link between the main board and display has seen better days. Swap it for this factory-spec Rocket Espresso cable, part A199906722, and bring your interface back to life. The multi-strand, low-resistance conductors deliver rock-solid data flow to the 3.5-inch TFT, while the...
This genuine Rocket Espresso water tap (OEM code A227704669) is supplied complete with the knob and ensures a secure fit on R58 models. Built for longevity and optimal water flow control. Made in Italy using high-quality materials.
OEM part number: A227704669
Includes knob
Designed for Rocket R58 series
Made in Italy
Compatible with Rocket...