Flat Free Quick-Seal Tubes, Replacement Inner Tube Prefilled with Flat Free Tire Sealant, 18x8.50-8"/20x8.00-8" Tube, No.45015. Flat Free Quick Seal Tubes are a hassle-free way to repair a flat tire. Quick-Seal Tubes are unlike your average replacement inner tube because they come pre-filled with Flat Free Tire Sealant. The sealant's synthetic fibers, adhesion agents and corrosion.

• Repair your flat tire, seal punctures and prevent future leaks-all with one tube
• Sealant will seal tube punctures up to 1/8"
• Sealant will not free or dry
• Sealant is Environmentally Friendly-it will not free or dry
• Sealant will not free or dry
• Repair your flat tire, seal punctures, and prevent future leaks - all with one tube
• For an 18x8.50-8" or 20x8.00-8" Tire