Smart Parts ION/ION XE O-Ring Seal Kit with Sleek Dow 33 The O-rings you will need to fix your ION. A must for any ION owner. Seal Kit Includes: 1 X 010-90 URETHANE 2 X 014-70 URETHANE 2 X 015-70 URETHANE 2 X 015-90 URETHANE 1 X 017-90 URETHANE 2 X 020-70 URETHANE 1 X 016-70 BUNA 1 X 017-70 BUNA 1 X 018-70 BUNA 3 X 020-70 BUNA 1 X 022-70 BUNA 1 X REGULATOR PISTON SEAT 1 X ION LUBE 1 X VERTICAL ASA AIR FILTER