Filler Caps and Accessories

For Manufacturers of Rail Locomotives, Marine and Racing Vehicles, Liquid Processing Systems
and Storage, and Heavy Duty Off-Road, Construction, Mining, Farm and Forestry Equipment

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    • 300 Caps
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    • 300 Strainers
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    • 400 Strainers
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Our 300 Series products match applications with a sealing area of 2.2 inches diameter. A variety of styles and materials accommodate fuel, oil or process liquid applications. Accessory options let you build the filler assembly you need and three different strainers provide varying degrees of filtration for 300 Series installations to help you maintain clean fluids within your engine or system.

Wisco Products also specializes in meeting your custom needs. Regardless of your order quantity, Wisco provides the service and performance you can count on.

View our product catalog in this section and then call our Inside Sales Department now at 800-367-6570 to learn how Wisco Products can meet your engine and process fluid fill needs!