The ProTek T3 Ultra Hot Turbo Glow Plug was developed to provide nitro enthusiasts with an affordable, general purpose turbo plug. The T3 "Ultra Hot" heat range plug is recommended for .12 to .21 size engines running 10 - 36% nitro in colder climates.

Heat Range Options:

• PTK-2550: T3 Turbo Plug, "Ultra Hot" plug recommended for .12 to .21 size engines running 10 - 36% nitro in cold conditions.
• PTK-2551: T4 Turbo Plug, general purpose "Hot" plug recommended for .12 to .21 size engines running 10 - 36% nitro.
• PTK-2552: T5 Turbo Plug, "Medium" plug recommended for .12 to .21 size engines running 10 - 36% nitro in hot conditions.