{"product_id":"forespar-performance-products-mf-842-vented-loop-3-4-inch-for-marine-and-engine-cooling-systems","title":"Forespar Performance Products MF 842 Vented Loop - 3\/4 inch for Marine and Engine Cooling Systems","description":"\u003cp\u003e\u003cstrong\u003eMF 842 Vented Loop - 3\/4\"\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eInstalling one of our vented loops will ensure that fluids will not siphon from tank to tank. Vented loops are commonly used in the marine toilet system and engine cooling system. The simple valve system incorporated in the top of the loop allows air to enter the line when not in use, yet effectively seals as water or other fluid passes through. Molded in Marelon, neither vent nor loop will corrode. The duckbill one way valve is designed to seal properly if particulate matter is present in fluids.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBarb Size: 3\/4\" (19.05mm)\u003c\/li\u003e\n\u003cli\u003eHeight: 4-1\/2\" (114.3mm)\u003c\/li\u003e\n\u003cli\u003eWidth: 3-3\/4\"\" (95.25mm)\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lsl5xp ---\u003e\n\u003cp\u003eThe Forespar Performance Products MF 842 Vented Loop is an essential component for marine toilet systems and engine cooling applications, designed to prevent siphoning and ensure system integrity. Crafted from durable Marelon material, this vented loop resists corrosion and provides reliable performance in harsh marine environments. Its simple yet effective valve system allows air to enter when not in use, sealing tightly to prevent fluid backflow, while the duckbill one-way valve ensures proper sealing even with particulate matter present. This feature helps maintain the proper operation of your marine plumbing and cooling systems, reducing maintenance and potential damage.\u003c\/p\u003e\u003cp\u003eThe MF 842 vented loop features a 3\/4 inch barb size, making it compatible with standard marine hoses. Its compact design measures approximately 4-1\/2 inches in height and 3-3\/4 inches in width, facilitating easy installation in tight spaces aboard boats or in engine compartments. The high-quality construction and corrosion-resistant properties of Marelon ensure longevity and dependable performance over time, even in challenging conditions. This vented loop is an ideal choice for boat owners seeking a reliable, low-maintenance solution for preventing siphoning in various marine plumbing applications.\u003c\/p\u003e\u003cp\u003eDesigned with durability and functionality in mind, the Forespar MF 842 Vented Loop is a crucial preventative component that enhances safety and performance. Its non-corrosive, molded in Marelon construction ensures it withstands the marine environment without degradation. Whether used in a marine toilet system or engine cooling setup, this vented loop offers peace of mind and efficient operation. As a product manufactured with Prop 65 compliance, it adheres to strict safety standards, making it a trusted choice for professional and recreational boaters alike.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMaterial: Molded in Marelon for corrosion resistance and durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesign: Simple valve system allows air entry when not in use, sealing effectively during fluid flow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSealing: Duckbill one-way valve ensures proper sealing even with particulate matter present\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatibility: 3\/4 inch barb size\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eTruck Freight: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eOversized: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\u003c\/ul\u003e","brand":"Forespar Performance Products","offers":[{"title":"Default Title","offer_id":44253730177113,"sku":"73259","price":31.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/1818\/2489\/files\/73259XL.jpg?v=1785356508","url":"https:\/\/www.marinepartsonly.com\/products\/forespar-performance-products-mf-842-vented-loop-3-4-inch-for-marine-and-engine-cooling-systems","provider":"Marine Parts Only","version":"1.0","type":"link"}