A Sunglo 90017-4 Hose & Regulator Assembly controls fuel flow and pressure for stable performance across the heating and ventilation setup.
The hose & regulator assembly supplies propane to the heating and cooling unit at the correct pressure and flow rate so combustion can occur safely and consistently. Its hose and regulator design matters because durable materials, secure connections and accurate pressure control protect system performance and reduce the risk of fuel leaks or unstable burner operation.
The hose & regulator assembly may be wearing out if the HVAC system shows weak or inconsistent heating, burner performance problems or unreliable ignition caused by improper propane delivery. You might notice physical signs such as cracking, stiffness or wear on the hose, while environmental signs may include a propane odor, visible leakage or corrosion around the connections and regulator.
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We provide the option to return most new, unopened real OEM heating and cooling replacement parts within 90 days of delivery, so check our Returns page to see if your purchase qualifies. For parts that have been installed and no longer work, fill out the form in the Defective Parts & Warranty Inquiries section.