EC21 Buying Leads Catalogs - o ring kit http://importer.ec21.com/buy_leads/o ring kit.html Buy We Need Following Oringhttp://www.ec21.com/offer_detail/Buy_We_Need_Following_Oring--4789923.htmlDEAR SIR WE NEED WEARING KIT FOR ENERGY ACCUMULATOR 1. S.S RING I.D =85MM OD 90 MM THICKNESS =2.5 MM 2. TEFLON RING 85 20081210