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this gasket ensures a secure seal around the flame sensor
Its shielded construction adds an extra layer of protection against external elements
Shop now and experience the quality and reliability of Jergens industrial hardware
allowing you to customize the clamping pressure and accommodate workpieces of varying thicknesses
551-S-HD | 551-S HEAD MECH. #136600 | Xylem-McDonnell & Miller Part Number_350817 this gasket ensures a secure551 S MECHANICAL HEAD #136600 from Xylem McDonnell & MillerThis 551 S Mechanical Head is designed for use with McDonnell & Miller model 136 boilers. It is a mechanical boiler water level control. The 551 S Mechanical Head has a 1 8" NPT female connection. It is made of cast iron and has a black finish. The 551 S Mechanical Head is a replacement part for McDonnell & Miller boilers. Our HVAC supply store offers the best prices and fast shipping on all
