Does the Ayrlett Air Admittance Valve have a maximum life?
• No! Ayrletts AAVs have been tested to ensure that they will work 500,000 times without a single failure. This is done in a wide variety of temperatures to ensure it will work in bitter cold and extreme heat. What kind of warranty does Ayrlett offer? The Ayrlett Air Valve warrants that their products shall be free from defects in material and workmanship for the lifetime of the original drainage system in which the AAV is installed. If AAV is defective, the product will be either replaced or repaired at no cost to consumer. This warranty does not cover improperly installed AAVs or units that have been misused, tampered with or destroyed.