Parity Plus Company is not affiliated with all the Companies mentioned in our website. References to Company Names are for identification purpose only. They are not trademarks or trade names used by or affiliated with Parity Plus Company. RG and Corayvac are the registered trademarks of Roberts Gordon LLC, Buffalo NY. Parity Plus Company sells parts that require professional installation. Buyer(s) acknowledge that they are responsible to enlist the services of trained service professionals in the service and repair of heating appliances. Repair parts sold by Parity Plus Company may require specialized tools and/or procedures for safe and reliable operation of the effected systems. Buyer(s) specifically hold Parity Plus Company harmless for injury, property damage, or other losses associated with the use of items purchased from Parity Plus Company. It is not the intention of Parity Plus Company to encourage the servicing of HVAC appliances by untrained personnel, rather to allow the public to purchase the necessary parts directly for use by trained and/or licensed professionals.