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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
The Lennox X4138 Pre-Filter is a critical OEM replacement component engineered for high-performance HEPA bypass air filtration systems
or corroded pans that lead to AC water leaks and structural issues
the integrated auxiliary switches provide one fixed and one adjustable contact point
preventing overheating
Double-ported cage architecture provides superior control at low loads and maintains efficiency in bi-flow operations
Browning VPB-231 Pillow Block 319852-301 The Lennox X4138 Pre-Filter isThe Browning VPB 231 is a standard duty, 1 15 16" bore diameter pillow block bearing designed for high performance industrial HVACR and power transmission applications. Built with a robust cast iron housing, this unit features the BOA concentric locking mechanism, which ensures 360 degree holding power and maintains near perfect concentricity to minimize vibration and shaft marring. The bearing insert is constructed from 52100 bearing steel with a