O.S. Engine - Glow Plug #7 Medium Hot  [OSMG2713]

FEATURES:

• Somewhat hotter temperature range compared to the O.S. #8 plug
• Newly developed to spotlight easier operating at low and medium rates
• Well suited for helicopter engines with superior performance around hovering RPM range-critical for smooth and powerful 3D and F3C kind journey
• Additionally great throughout plug for most 2-stroke airplane, helicopter and car (except turbo head) machines

How to pick the proper Glow Plug? Please relate to the next website link.
http://www.osengines.com/accys/choosing-glowplugs.html