Kirby Morgan 525 347 Helmet Spares Kit For KM 17K 37 Replacement Foam Kit 505 725 Tri Valve Assembly 1 510 552 a complete 505 725 Tri Valve Assembly 1 510 552 Exhaust Valve 1 520 042 Tie Wrap 1 and the addition of moisture from the diver’s exhalation coming in contact with the topside air temperature Water Dump Black 1 510 575 Nose Block Pad 1 510 628 Neck Dam 1 510 754 Head Cushion Assembly 1 510 683 Chin Cushion 1 510 747 Oral Nasal Mask 1 515 033 Communication Set 1 525 309 Reg Rebuild Kit 1 525 311 Side Block Kit 1 525 745 Head Cushion Foam Spacer Kit (HCFS) 1 525 759 Quad Valve Exhaust Kit 1 530 035 Screw 2 530 045 Screw 1 550 061 Whisker Spacer 2