Rocket Espresso Exhaust Jet Breaker A439908042 – Boxer, RE, R8 & R Nine One

Control the noisy blast and messy spray that follow every purge with this genuine exhaust jet breaker, part A439908042. The stainless insert screws onto the 3-way valve outlet and, aided by its supplied EPDM O-ring, forms a leak-tight joint that diffuses exhaust water quietly into the drip-tray—no more counter splatter.

Key Features & Benefits

• Anti-splatter diffuser – channels discharge neatly into the tray
• Includes food-grade O-ring – drip-free seal straight out of the box
• Stainless steel body – corrosion-proof and safe for acid descalers
• Low-restriction ports – preserve brew pressure and flow consistency
• Quick install – standard Rocket thread; swap in minutes

Compatibility

• Boxer 2014, Boxer (202009- / 202405-)
• 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 exhaust jet breaker and keep every extraction whisper-quiet, splash-free and perfectly on target.