Stock o-ring kit featuring the o-rings for the B2K.

This o-ring kit includes:

• 3 H-015 O-Rings
• 2 H-015 UR90 O-Rings
• 3 H-016 O-Rings
• 2 H-019 O-Rings
• 1 H-020 O-Ring
• 1 Valve Seal
• 2 Regulator Seals