Gem Bids For Item 1 - Full Face Mask Respirator With Cartridge Screw - In Type For Organic - Acid Fume - Chlorine - Confg.to Is-14166 Item 2 - Face Mask For Air Breathing Apparatus Plug - In Type Item 3 - Shoulder Straps For Air Breathing Apparatus. Item 4 - Cylinder Strap Assembly For Air Breathing Apparatus. Item 5 - Buckle Set For Air Breathing Apparatus. Item 6 - Din Cylinder Valve Assy 300 Bar Ratchet For Air Breathing Apparatus. Item 7 - Ldv With Long Hose Assembly For Air Breathing Apparatus. Item 8 - Back Plate With Ldv Of 0.75 Meter Hose With Pnumatics And Indg0.75 M Hose Item 9 - O Ring 11 X 2.5 - Cylinder Connector - In Viton O Ring. Moc Viton Rubber