First Stage Service to 40% O2 Envoy, DSV, 50D, Flathead XP & Flathead VI This service is for your Zeagle First Stages and includes the following - Pre service inspection & Test - Complete Strip down - Ultrasonic cleaning of all metal parts - Cleaning of all non metallic parts - Replacement of all Orings - Replacement of filter - Replacement of HP Seat - Replacement of diaphragm - Complete rebuild - Test and tune Return Shipping is via Australia post EParcel service, please choose your return shipping method standard or express during the checkout process. Don"t forget to include a copy of your invoice when you send your Regs in for servicing. Pack your Regs carefully and send them to Scuba Imports Service Dept PO Box 887 Joondalup DC WA 6919