Harvard Corporation wants to dry up an ocean of liquid waste through its innovative Constant Contamination Control^® filters and filtration systems. Extending the life span of lubricants, coolants, hydraulic oil, and refrigerant oil can eliminate millions of gallons from the waste stream and extend equipment life. Harvard^® brand filters remove moisture and damaging particles down to a single micron in size. This extra protection helps extend the life of lubricants, engines and equipment while reducing maintenance costs.

Harvard^® brand filters are state-of-the-art fluid filtration. They are protected under U.S. patent numbers Pat: 5,486,290; Pat. 6,270,668 B1; Pat: 6,319,416 B2; and other patents pending. Harvard^® brand filters have a nominal rating of one micron. Oil should be filtered each time it is transferred from one vessel to another because additional contamination is inevitably introduced whenever oil is handled.

Hydraulic Models

1200H #5442 Designed to filter fluids in hydraulic systems on industrial equipment, heavy equipment and transmissions. Two section, 11.50" dia. x 7.62" lg.

1006H #3212 Designed to filter oil-based EDM fluids and high-viscosity hydraulic oils. Six section, 7.50" dia. x 19.75" lg.

1004H #0672 Designed to filter fluids in hydraulic systems on industrial equipment, heavy equipment and transmissions. Four section, 7.50" dia. x 19.75" lg.

1002H #0673 Designed to filter fluids in hydraulic systems on industrial equipment, heavy equipment and for transmissions. Two section, 7.50" dia. x 19.75" lg.

750H #0783 Designed to filter fluids in hydraulic systems on industrial equipment and heavy mobile equipment, as well as transmissions. Two section, 7.50" dia. x 15.00" lg.

500H #0778 Designed to filter fluids in hydraulic systems on industrial equipment, small mobile equipment and transmissions. Two section, 7.50" dia. x 10.06" lg.

156H #3940 Designed to filter fluids in hydraulic systems on industrial equipment. Two section, 5.50" dia. x 16.62" lg.

150H #0697 Designed to filter fluids in hydraulic systems on industrial equipment. Two section, 5.50" dia. x 8.81" lg.

152H #3938 Designed to filter fluids in hydraulic systems on industrial equipment. Single section, 5.50" dia. x 4.94" lg.

Lube Models

1200L #5444 Designed to filter gear oil and other high-viscosity oils. Two section, 11.50" dia. x 7.62" lg.

1006L #3210 Designed to filter gear oil and other high-viscosity oils. Six section, 7.50" dia. x 19.75" lg.

1004L #0682 Designed to filter lube oil in large diesel engines and heavy equipment, or in industrial equipment. Four section, 7.50" dia. x 19.75" lg.

1002L #0678 Designed to filter lube oil in large diesel engines and heavy equipment or in industrial equipment. Two section, 7.50" dia. x 19.75" lg.

750L #0785 Designed to filter medium-sized diesel engine lube oil in heavy and mobile equipment or to filter lube oils in industrial equipment. Two section, 7.50" dia. x 15.00" lg.

500L #0780 Designed to filter engine lube oil or to filter lube oils in industrial equipment. Two section, 7.50" dia. x 10.06" lg.

156L #3939 Designed to filter engine lube oil or lube oils in industrial equipment. Two section, 5.50" dia. x 16.62" lg.

150L #0696 Designed to filter engine lube oil or lube oils in industrial equipment. Two section, 5.50" dia. x 8.81" lg.

152L #3937 Designed to filter engine lube oil or lube oils in industrial equipment. Single section, 5.50" dia. x 4.94" lg.

Water-Based Models

1006W #4467 Designed to filter water-based fluids, coolants and water-based EDM fluids. Six section, 7.50" dia. x 19.75" lg.

1004W #3902 Designed to filter water-based fluids, coolants and water-based EDM fluids. Four section, 7.50" dia. x 19.75" lg.

1002W #5439 Designed to filter water-based fluids, coolants and water-based EDM fluids. Two section, 7.50" dia. x 19.75" lg.

500W #4706 Designed to filter water-based fluids, coolants and water-based EDM fluids. Two section, 7.50" dia. x 10.06" lg.

Spin-On Bypass Filters
Harvard^® "Spin-On" Filters provide bypass filtration for light industrial applications, cars, campers, vans, trucks and tractors.

Hydraulic
• Model H 61
• Model 125-S

Lube
• Model L 61
• Model 750-S

Tank Vent Filter
• Model 750-SV

Mounting base kit required for spin-on filters sold separately.