{"product_id":"swirl-diffuser-plenum-box-500-copy","title":"Swirl Diffuser Plenum Box 400","description":"\u003cp data-start=\"189\" data-end=\"652\"\u003eThe \u003cstrong data-start=\"212\" data-end=\"245\"\u003eSwirl Diffuser Plenum Box 400\u003c\/strong\u003e is a high-performance air distribution unit designed to provide efficient and uniform airflow in HVAC systems. It combines a plenum box with a swirl diffuser to deliver 360° air distribution, minimizing drafts and maintaining optimal comfort levels in commercial, industrial, and residential spaces. The 400 mm size makes it suitable for medium-duty duct systems, ensuring precise and quiet air delivery.\u003c\/p\u003e\n\u003cp data-start=\"654\" data-end=\"669\"\u003e\u003cstrong data-start=\"654\" data-end=\"667\"\u003eMaterial:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"670\" data-end=\"875\"\u003e\n\u003cli data-section-id=\"1ord598\" data-start=\"670\" data-end=\"746\"\u003e\n\u003cp data-start=\"672\" data-end=\"746\"\u003ePlenum box: Galvanised steel or powder-coated sheet metal for durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17f96es\" data-start=\"747\" data-end=\"818\"\u003e\n\u003cp data-start=\"749\" data-end=\"818\"\u003eDiffuser: Aluminium or steel with precision-engineered swirl blades\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"yitd5p\" data-start=\"819\" data-end=\"875\"\u003e\n\u003cp data-start=\"821\" data-end=\"875\"\u003eCorrosion-resistant finish for long-term reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"877\" data-end=\"898\"\u003e\u003cstrong data-start=\"877\" data-end=\"896\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"899\" data-end=\"1277\"\u003e\n\u003cli data-section-id=\"17wtebz\" data-start=\"899\" data-end=\"961\"\u003e\n\u003cp data-start=\"901\" data-end=\"961\"\u003eSize: 400 mm (square or circular dimension based on model)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1rgnpkc\" data-start=\"962\" data-end=\"1006\"\u003e\n\u003cp data-start=\"964\" data-end=\"1006\"\u003eProvides 360° swirl airflow distribution\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1u06ad\" data-start=\"1007\" data-end=\"1056\"\u003e\n\u003cp data-start=\"1009\" data-end=\"1056\"\u003eCompatible with standard ductwork connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1e246ii\" data-start=\"1057\" data-end=\"1107\"\u003e\n\u003cp data-start=\"1059\" data-end=\"1107\"\u003eReduces drafts and noise in conditioned spaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s0pc\" data-start=\"1108\" data-end=\"1161\"\u003e\n\u003cp data-start=\"1110\" data-end=\"1161\"\u003eEasy installation with standard mounting hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1wbqpvq\" data-start=\"1162\" data-end=\"1228\"\u003e\n\u003cp data-start=\"1164\" data-end=\"1228\"\u003eSuitable for ceiling, wall, or floor-mounted HVAC applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"v0y4fn\" data-start=\"1229\" data-end=\"1277\"\u003e\n\u003cp data-start=\"1231\" data-end=\"1277\"\u003eDurable and corrosion-resistant construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Direct Duct Supplies","offers":[{"title":"80mm \/ Yes","offer_id":57219734831429,"sku":null,"price":60.0,"currency_code":"GBP","in_stock":true},{"title":"80mm \/ No","offer_id":57219734864197,"sku":null,"price":40.0,"currency_code":"GBP","in_stock":true},{"title":"100mm \/ Yes","offer_id":57219734896965,"sku":null,"price":62.0,"currency_code":"GBP","in_stock":true},{"title":"100mm \/ No","offer_id":57219734929733,"sku":null,"price":45.0,"currency_code":"GBP","in_stock":true},{"title":"125mm \/ Yes","offer_id":57219734962501,"sku":null,"price":65.0,"currency_code":"GBP","in_stock":true},{"title":"125mm \/ No","offer_id":57219734995269,"sku":null,"price":45.0,"currency_code":"GBP","in_stock":true},{"title":"150mm \/ Yes","offer_id":57219735028037,"sku":null,"price":65.0,"currency_code":"GBP","in_stock":true},{"title":"150mm \/ No","offer_id":57219735060805,"sku":null,"price":50.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 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