\nPlants only absorb CO2 during the day, hence the CO2 system can be stopped during the night. With the use of the solenoid valve in combination with a domestic timer this can be done automatically. The investment in the valve is returned quickly, you will need to exchange the CO2 cylinder less frequently!","sku":"9696","mpn":"A5010205","brand":{"@type":"Thing","name":"Colombo"},"offers":{"@type":"Offer","url":"https://www.waterzoo.co.uk/shop/COLOMBO-CO2-SOLENOID-SHUT-OFF-VALVE-UK-PLUG-M9696","priceCurrency":"GBP","price":"49.99","availability":"https://schema.org/InStock"}}
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