Robertshaw 10-391 Spark Plug Adaptor Designed for hot water extender

Designed for hot water extender applications

outperforming generic aftermarket alternatives

High-density construction resists stripping and thermal fatigue in demanding environments

When should a technician replace this gasket

This ensures a tight

Robertshaw 10-391 Spark Plug Adaptor Designed for hot water extenderThe Robertshaw 10 391 Spark Plug Adaptor is a mission critical component designed for high performance HVAC ignition systems. This heavy duty ignition electrode adapter provides a secure, low resistance bridge between standard spark plugs and 1 4" female quick connect terminals. Engineered for durability in demanding heating and refrigeration environments, the 10 391 utilizes high grade metallic alloys to maintain electrical continuity even under