Filter heads available from Main Filter Inc.

Main Filter Inc. offers quality spin-on heads in a variety of configurations to fit many of the most popular spin-ons in the industry. With our wide variety of port sizes, our adapters are easy to install and use.

Our aluminium filter heads are compatible with petroleum-based oil, are available with or without a bypass and can be used in a wide variety of mobile applications such as cranes, excavators, trenchers, wood splitters, chippers and much more.

We offer a variety of spin-ons in various media and micron ratings to complement numerous applications. View available spin-on configurations.

FH1 Series

Main filter filter head Series FH1 is a single adapter with an Nominal Spin-On OD of 5" and a nose thread size of 1-1/2" - 16 supports the following spin-ons series SP1A, SP1B and is available in the following configurations:

FH2 Series

Main filter filter head Series FH2 is a single adapter with an Nominal Spin-On OD of 3.75" and a nose thread size of 1" - 12 supports the following spin-ons series SP2A, SP2B and is available in the following configurations:

FH3 Series

Main filter filter head Series FH3 is a single adapter with an Nominal Spin-On OD of 3.75" and a nose thread size of 1-1/2" - 16 supports the following spin-ons series SP3A, SP3B and is available in the following configurations:

FH4 Series

Main filter filter head Series FH4 is a single adapter with an Nominal Spin-On OD of 3.75" and a nose thread size of 3/4" - 14 BSP supports the following spin-ons series SP4A, SP4B and is available in the following configurations:

FH5 Series

Main filter filter head Series FH5 is a dual adapter with an Nominal Spin-On OD of 5" and a nose thread size of 1-1/2" - 16 supports the following spin-ons series SP1A, SP1B and is available in the following configurations:

Gauges

60# filter head gauge

This easy-to-read gauge will let you know when it time to replace your filter.