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Automatic radiator air vent CALEFFI AERCAL 1 1/4" right-side connection
Summary description:
CALEFFI AERCAL automatic air vent for radiators, model 507711, with 1 1/4" right-side threaded connection. Designed to remove trapped air from radiator and heating circuits to maintain system efficiency and prevent noise and corrosion. Easy to install on radiator outlets or return lines; suitable for residential and commercial heating systems that accept 1 1/4" fittings.