5 in. to 4 in. Round Reducer Sku: MAS-R5X4-HD This is a brand new part comes with a full manufacturer warranty!!! This sale transaction is for only this part number: R5X4 The Master Flow 5 in. x 4 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 5 in. pipe to a 4 in. pipe in an HVAC system. It is suitable for most HVAC applications. Features: 30-Gauge, galvanized steel construction for durability Hemmed collar edges for an improved fit and increased strength Connects 5 in. pipe to 4 in. pipe in duct run Seal seams with code-approved mastic, sealant or duct tape (sold separately) Always insulate ductwork for greater system efficiency and comfort (insulation not included) Maximum temperature rating of 390F, minimum temperature rating of -100F TERMS OF SALE: If, after receiving this item you discover that it was not the one you wanted, simply return it for a full refund within 30 days. You will have to pay for the return shipping charges. Refund is void if you have installed, used or damaged the item in any way. Item must be returned with its original box, packing materials and instructions. Payment via PayPal must be received within 3 days of transaction and prior to shipping. SHIPPING: Shipping charge will be based upon location. Please use the shipping calculator or request a shipping quote. International buyers: Customs fees, duties, taxes, tariffs other fees are your responsibility. Arrival time will depend on your location. If you have any questions, feel free to ask. Thank you for visiting! Weight:6.0000~SCID:260496~Dimension:7.000x8.000X7.000