{"product_id":"lindab-magestic-galvanised-steel-gutter-corner-overflow-protector-osk","title":"Lindab Magestic Galvanised Steel Gutter Corner Overflow Protector OSK","description":"\u003cp\u003eKeep water inside the gutter where it belongs with the Lindab Magestic Galvanised Corner Overflow Protector — OSK, 100 mm. Designed for high-flow areas such as roof corners and bay returns, this neat clip-on deflector raises the effective front edge of the gutter to curb spillover during cloudbursts. It’s a fast, tool-free retrofit that simply hooks over the rolled bead, making it ideal for upgrading existing runs as well as new installs. Formed from Lindab’s Magestic galvanised steel, the zinc–magnesium enhanced coating stabilises the surface and protects zinc’s naturally porous structure, delivering excellent corrosion resistance with minimal upkeep—even on exposed or coastal sites. Use OSK at corners and partner with the straight-run version \u003cem\u003eOSKR\u003c\/em\u003e where needed to manage surge points along long elevations. Supplied in unpainted Magestic Galvanised that ages to a refined dark-grey patina; coordinating components are also available across the Lindab Rainline painted range in 12 colours for a fully colour-matched system.\u003c\/p\u003e \u003ch2\u003eTechnical Specification\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?si=SM-KoN0VhJ2pcSWs\u0026amp;embeds_referring_euri=https%3A%2F%2Fwww.drainagecentral.co.uk%2F\u0026amp;source_ve_path=Mjg2NjQsMTY0NTA2\u0026amp;v=JP7lZ_f75Qo\u0026amp;feature=youtu.be\"\u003eAssembly Video\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003ePDFs: \u003ca href=\"https:\/\/www.drainagecentral.co.uk\/Graphics\/drainage-central-roof_drainage_system_assembly-min.pdf\"\u003eAssembly Instructions\u003c\/a\u003e | \u003ca href=\"https:\/\/www.drainagecentral.co.uk\/Graphics\/roof_drainage_system_technical-drainage-central1.pdf\"\u003eTechnical Details\u003c\/a\u003e\n\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Lindab\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e Magestic (Half Round)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Corner Overflow Protector\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel\/SKU:\u003c\/strong\u003e OSK100MG\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish\/Colour:\u003c\/strong\u003e Magestic Galvanised (unpainted); Rainline painted components available in 12 colours\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Galvanised steel with zinc–magnesium corrosion protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize Compatibility:\u003c\/strong\u003e 100 mm Lindab half round steel gutter\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUse Case:\u003c\/strong\u003e Reduces overflow at high-flow sections (corners\/bays); pair with \u003cem\u003eOSKR\u003c\/em\u003e for straight runs\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Hooks over gutter bead; easy retrofit—no sealant or fixings required\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eKey Features:\u003c\/strong\u003e Discreet deflection; fast tool-free fit; enhanced corrosion resistance; low maintenance; recyclable steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAppearance:\u003c\/strong\u003e Weathers naturally to dark-grey patina in 3–5 years\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10 Year (Magestic)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Lindab\u003c\/li\u003e \u003c\/ul\u003e","brand":"Trade Superstore Online","offers":[{"title":"Default Title","offer_id":56151137616247,"sku":"OSKMG","price":35.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0444\/8675\/4460\/files\/Lindab_Magestic_Galvanised_Steel_Gutter_Corner_Overflow_Protector_OSK.jpg?v=1762723274","url":"https:\/\/www.tradesuperstoreonline.co.uk\/products\/lindab-magestic-galvanised-steel-gutter-corner-overflow-protector-osk","provider":"Trade Superstore Online","version":"1.0","type":"link"}