• 1" outside, 3/8" inside nut/ratchet drive for easy removal
• Heavy-duty 600lb. canister
• Heavy-Duty coil spring on diesel applications
• Wire-backed media provides strength
• NF21 synthetic composite material provides maximum engine protection with minimal flow restriction
• Heavy-duty center tube provides maximum flow
• Anti-backflow valve to reduce damage during cold starts
• Heavy-duty .100"-thick base plate for extra strength
• Heavy-duty Nitrile rubber gasket for a leak-free seal