We reference the OEM solely for identification and cross-referencing purposes. Beta 1 Filters B1SO0007257 is a quality replacement for FILTER MART / 051327.
Beta 1 Filters B1HF0138875 is a quality replacement for FAI FILTRI / R2503M90A.Our filters meet or exceed OEM Standards.We reference the OEM solely for identification and cross-referencing purposes..