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Replacement Light Processing Unit fan filter for the Form 4L generation 
<a href="https://support.formlabs.com/s/article/Replacing-the-Form-4L-LPU-fan-filter">Installation guide</a>

Form 4L LPU Fan Filter

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Find the Right Material for Your Application 

Our interactive material selection wizard will help you make the right material decision based on your application and the properties you care the most about from our growing library of 20+ resins.

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Printing Technology

High Stiffness

Temperature Resistant

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Form Mobile

Iterate Faster, From Prototype Through Production

Reliably integrate 3D printing across design and product development workflows and rapidly create prototypes with a range of materials.

Find Value Across the Supply Chain

Produce high precision, functional 3D prints that can stand in for final parts and stand up to the rigors of the factory floor, from pre-production validation to jigs and fixtures to end-use parts.

3D Printing for Automotive and Transportation

Explore applications of 3D printing in the automotive industry and learn how to accelerate time to market and cut costs by up to 90%.

Drones

3D Printing Solutions for Aerospace

Explore applications of 3D printing in the aerospace industry and learn how to accelerate time to market and cut costs by up to 90%.

Scalable Production, Fast ROI

Learn how dental labs and practices of any size can build reliable, high quality, easy-to-use digital workflows for dental models, surgical guides, splints, retainers, and more.

Low Investment, High Impact 

Open the door to high-impact medical applications, while saving significant time and costs from the lab to the operating room.

Bring the Real World to the Classroom

Encourage creativity and expose students to the same professional-level technology used by businesses in a range of industries.

Incredible Details, Beautiful Surface Finish

Use accessible, professional 3D printing to facilitate collaboration, win over directors, and bring hyper-realistic digital models to life in a matter of hours.

Sharp Detail and Clean Casting Every Time

Easily integrate a fully digital workflow with the most reliable 3D printer for jewelry production. Rapidly prototype designs, fit clients, and produce large batches of ready-to-cast pieces.

Fast, High Quality Production

Bring digital production in-house and manufacture higher quality custom ear products more consistently, and at higher volumes.

Form 4L LPU Fan Filter

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Tech specs