Direct OEM Compatibility: Engineered to replace obsolete 47-21777-05 and 47-21777-10 units without field modification

Simplified Installation: Through-bolt mounting and single-phase wiring allow for faster swap-outs in the field

Common Questions Is the Robertshaw 4290-008 adjustable for natural gas or LP

The 3/8" sweat (ODF) connections and rugged steel shell with a corrosion-resistant epoxy powder finish ensure structural integrity

Weil McLain 382-200-451 Kit Els PW 17895 Direct OEM Compatibility: Engineered toThe Weil McLain 382 200 451 Conversion Kit is a critical field upgrade designed to transition legacy boiler systems from Hot Surface Ignition (HSI) configurations to a more reliable Spark Ignition (SI) Gold Control system. This kit allows for the replacement of aging Honeywell, Fenwal, and White Rodgers HSI modules, which often suffer from premature igniter failure and inconsistent flame rectification. By upgrading to the Gold Control SI, contractors