CMA 1/4" x 1/4" x 3/8" Expansion Valve grimac/zola-1-2-eclisse-ten-twenty-boilers When the tool doing that

When the tool doing that job is built right

Screws and washers not included

Fits 10 mm outside diameter steam wands

a six-pole element will not swap in as a substitute

CMA 1/4" x 1/4" x 3/8" Expansion Valve grimac/zola-1-2-eclisse-ten-twenty-boilers When the tool doing thatCMA Expansion (Over Pressure) Valve Combination expansion over pressure valve with a built in one way check valve, protecting the boiler from excess pressure while preventing backflow. SPECIFICATIONS 1 4" x 1 4" x 3 8" valve ports Includes integrated one way retention valve COMPATIBILITY Fits: CMA equipped espresso machines using this 1 4" x 1 4" x 3 8" valve INSTALLATION Should be installed by a qualified technician, as it's part of the boiler's