HVAC heater hose connectors fail when the plastic material fatigues from heat and vibration. This upgraded Dorman OE FIX replacement connector is made from corrosion-resistant stainless steel for greater durability. Product Features:Improved design - this HVAC heater hose connector has been redesigned for greater durability the original equipment partDurable construction - this heater hose connector is made of stainless steel instead of the original equipment connector to reduce damage from heat fatigue and vibrationEasy to install - matches the original equipment form and dimensions for a simple replacementQuality tested - this part has undergone try-on, corrosion, heat and pressure testing to ensure a quality fit and long service life