{"product_id":"auto-vent-replacement-cylinder","title":"Auto Vent Replacement Cylinder","description":"\u003cp\u003e\u003cstrong\u003eAuto Vent Replacement Cylinder\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReplacement cylinder for automatic vent openers. Refresh your vent openers without replacing the entire mechanism.\u003c\/p\u003e\n\u003cp\u003eCompatible with all Winter Gardenz greenhouse cylinders and many other models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1-Year Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Includes the black replacement cylinder only—not the complete mechanism.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThese cylinders operate on a wax-based mechanism (no electricity required). The wax gradually wears down, so the cylinder typically lasts 1–2 years. Extend lifespan by unscrewing it during winter when vents remain closed. Not recommended for coastal or beach-front locations due to harsh conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e If the vent isn’t closing, ensure it’s not catching on roof ribs beside the vent opening. Strong winds can shift the vent along the ridge—simply slide it back into the center channel. At temperatures above 17°C (63°F), the cylinder is designed to open, so temporarily disengage it to test full closure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Tips:\u003c\/strong\u003e\u003cbr\u003e\u003ciframe title=\"Installation Video\" src=\"https:\/\/www.youtube.com\/embed\/kXM_DaznLwY\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003ciframe title=\"Troubleshooting Video\" src=\"https:\/\/www.youtube.com\/embed\/CVxueDu03vA\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"wintergardenz.co.nz","offers":[{"title":"Default Title","offer_id":52821220065602,"sku":"AV01R","price":59.95,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/3602\/6434\/files\/auto-vent-replacement-cylinder__91427.jpg?v=1775685166","url":"https:\/\/ghco.co.nz\/products\/auto-vent-replacement-cylinder","provider":"The Greenhouse Company","version":"1.0","type":"link"}