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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
extending the life of the heating elements
preventing nuisance ignition lockouts and pressure switch errors
Designed as a dual-function T&P relief valve
this Modine replacement orifice controls the precise volume of fuel delivered to the burner
while the fan side should read between 7
McDonnell & Miller 339700 Basket Assembly Els PW 17895 extending the life of theThe McDonnell & Miller 339700 (Model SA21 38R) is a critical strainer basket assembly engineered for high performance integration with Series 21 Make Up Water Feeders. As a veteran grade replacement part, this assembly is vital for maintaining the filtration integrity of boiler systems, effectively trapping sediment and pipe scale before they can foul delicate valve seats or internal float mechanisms. This industrial strength HVAC strainer is also