Marco Dispense Switch 1501221 common-universal-simonelli-parts/mac-2000-premier-premier-maxi-solenoid-group which otherwise precipitates out as

which otherwise precipitates out as scale on boiler surfaces and heat exchangers

injector jet assembly

Some models also had a threaded thermostat orifice

Made in Japan

Length: 135mm (5-1/4") from inside of flange

Marco Dispense Switch 1501221 common-universal-simonelli-parts/mac-2000-premier-premier-maxi-solenoid-group which otherwise precipitates out as2 pin, 22 mm, 24V push button dispense switch. Fast shipping when in stock. When out of stock this becomes a special order item and typically requires 6 10 business days for processing prior to shipping. Specifications: Voltage: 24V Marco MPN: 1501221 Compatibility: Marco equipment dispense buttons Installation: Direct replacement Recommended for qualified technician.