Rocket Espresso Boiler Pressure Gauge M219904748 – Capillary Type RE & R9 Series

Monitor service-boiler pressure with barista-grade precision using this factory capillary pressure gauge, part M219904748. The liquid-filled dial connects to the boiler via an ultra-responsive copper capillary tube, isolating the delicate mechanism from vibration and heat spikes while delivering rock-steady readings up to 3 bar. A polished stainless bezel and bold black scale make the gauge easy to read at a glance, and the 1/8″ M rear fitting threads straight into Rocket’s manifold block—no adapters or thread tape required. Swap it in during routine maintenance and keep your steam pressure dialled for latte-art quality milk and lightning-fast recovery.

Key Features & Benefits

• Remote capillary design — protects gauge from heat, stabilises needle for accurate readings
• 0–3 bar single scale — ideal range for commercial espresso boiler monitoring
• Liquid-filled dial — dampens vibration, prolongs gauge life and improves readability
• 1/8″ M rear connection — direct replacement on Rocket RE / R9 hydraulic blocks
• High-contrast markings — quick pressure checks reduce overshoot and save energy

Compatibility

• R8 (201711-) & R8V (201711-)
• R9 (201702- / 202311-)
• R9V (202004- / 202211-)
• RE A 2014 / 2016; RE-A (201912- / 202207-)
• RE-Doppia (201910- / 202002-)
• RE-S (201802-)
• RE-Timer (201806- / 202207-)

Install this genuine Rocket gauge and enjoy consistent steam performance, safer operation and peace-of-mind accuracy.