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![CALEFFI Hygroscopic radiator vent valve 2000 /2" automatic air vent 508041](https://www.obadis.com/media/catalog/product/cache/8b2baba0df5eeeb6d702a120e26eac81/k/a/kataloge_caleffi_vgabild_cab_d508021.jpg___/CALEFFI-Hygroscopic-radiator-vent-valve-2000--2andquot;-automatic-air-vent-508041.jpg "CALEFFI Hygroscopic radiator vent valve 2000 /2" automatic air vent 508041")
![Caleffi solar thermal mixer 252153 3/4", with check valve, 30-65 °C, chrome-plated](https://www.obadis.com/media/catalog/product/cache/8b2baba0df5eeeb6d702a120e26eac81/k/a/kataloge_caleffi_vgabild_252150.jpg___/Caleffi-solar-thermal-mixer-252153-3-4andquot;,-with-check-valve,-30-65-°C,-chrome-plated.jpg "Caleffi solar thermal mixer 252153 3/4", with check valve, 30-65 °C, chrome-plated")
![Caleffi differential pressure overflow valve 518500 3/4" adjustable](https://www.obadis.com/media/catalog/product/cache/8b2baba0df5eeeb6d702a120e26eac81/k/a/kataloge_caleffi_vgabild_518500.jpg___/Caleffi-differential-pressure-overflow-valve-518500-3-4andquot;-adjustable.jpg "Caleffi differential pressure overflow valve 518500 3/4" adjustable")
