Offering the perfect environment for your plants to prosper, the 6 x 12 Palram Canopia Harmony Large Walk In Silver Polycarbonate Greenhouse (1.85m x 3.7m) combines an attractive traditional design with the use of high-specification materials throughout.A Premium Polycarbonate GreenhouseUsing the latest Fine Shield Technology™, this 6x12 greenhouse is expertly built from crystal-clear, shatterproof polycarbonate panels, which provide 90% light transmission, block 100% of harmful UV rays, and will neither fade nor discolour in the sun. The heavy-duty, silver aluminium frame and galvanised-steel perimeter base are equally robust and impervious to rust.This premium build results in a near-unbreakable greenhouse, which will remain a much-loved feature of your garden for decades to come. Snow-load tested to 75kg/ m² (15.4lbs/ ft²) and wind resistant to 90km/ hr (56mi/ hr) too, this polycarbonate greenhouse provides supreme weatherproof protection for your plants. It is designed with a traditional apex roof for effective rainwater runoff, and to nicely round off its exceptionally attractive appearance.Entering the GreenhouseYou can gain easy access to your plants through a single door, which can be fitted with a left or right-hand opening to suit the orientation of your garden. This door includes a magnetic catch and padlock fixing (padlock not included), so rest assured that your valuable tools and invaluable plants will remain safe from unwanted attention.Greenhouse Vents and GutteringThis large greenhouse features 2 manually-opened roof vents to help you regulate the temperature inside the greenhouse. It comes with integral guttering too, offering you a free and sustainable supply of water for your garden, when connected to a water butt.Installing the GreenhouseBacked by a reassuring 5-year limited warranty, this polycarbonate/ aluminium greenhouse is completely maintenance free, saving you money and leaving you more time to nurture your plants. The high-impact polycarbonate panels are pre-cut and have uniform profiles, so are simple to slide into place for a straightforward assembly.Please be advised that this greenhouse for sale is designed without a floor, and that you should secure it to a solid, level surface. The galvanised steel base includes anchor holes for this purpose (you can buy an anchor kit as an optional upgrade).Choice of Sizes, Frame Colours and Greenhouse AccessoriesYou can purchase a Palram Canopia Harmony Greenhouse in a range of sizes, and with a green, grey or silver frame.We also sell a variety of Palram Canopia greenhouse accessories as optional upgrades, to help you customise the glasshouse to your exact requirements. These include a 2-tier potting bench, metal work bench, PVC shelving, heavy-duty aluminium shelves, trellising kit, greenhouse shading kit, plant hangers, side louvre windows, and anchor kit.Free DeliveryFree delivery is available to most UK postcodes.Crystal-clear polycarbonate panels provide 90% light transmission and block 100% of harmful UV raysHeavy-duty aluminium frame and galvanised-steel perimeter baseLockable door can be installed for left or right-hand opening (padlock not included)2 manually-opened roof ventsIntegral greenhouse gutteringSliding panel assembly systemResistant to rust and maintenance freeReassuring 5-year limited warrantyDesigned without flooring - anchor to a solid, level surfaceChoose from a range of sizes, and a green, grey or silver framePurchase greenhouse accessories as optional upgradesFree delivery to most UK postcodes