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i <br /> Pictures of Environ Penetration Fittings <br /> The following pictures of Environ Penetrations will help the technician identify the Environ family of <br /> studded penetration fittings. <br /> i <br /> GDB Series (GeoDuct Bulkhead) i <br /> The GDB series was used for their Corrugated Ducted Systems. Some fittings terminated to the ducting and then <br /> directly to the pipe while others were terminated by use of a"Donut"or"insert". <br /> i <br /> I <br /> 10 Stud GDS w Integral Boot <br /> to 1.5"GeoFlex D Pipe <br /> 10 Stud GDB Series with Donut to 1.5"GeoFlex D pipe ,I'I <br /> i <br /> L, <br /> l <br /> y <br /> 10 Stud GDB Series Penetration 10 Stud GDB w Donut to 1.5"GeoFlex S Pipe <br /> Diversified Products Manufacturing Inc.Environ Repair Manual Full Version Rev 3 <br /> Page 8 of 70 <br />