The 350CK2 is compatible in sizes 8", 10", and 12". The Repair Kit comes with Seat Retainer #1, Bolt Poppet Retainer, Washer Poppet Bolt, O-ring Poppet Bolt, Poppet Retainer, Seat Assembly #2 Poppet, and Washer Seat Retainer.

• Second Check Assembly Repair Kit
• Fits 8", 10" and 12" Models 375/350/475/450
• Includes #2 check assembly, nuts and lubricant
• Accessories allow for speedy repairs
• 1-year limited warranty