NATIONAL GUARD Hardware Prep Filler Kit (MPN HP90-FB). Key specifications — Brand: NATIONAL GUARD.
SKU 3G-OTH-499057
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Frequently Asked Questions
What is NATIONAL GUARD Hardware Prep Filler Kit used for?
The NATIONAL GUARD HP90-FB filler kit is used to cover unused door prep holes, providing a clean finish on commercial or industrial doors. It is ideal for maintenance teams retrofitting hardware or sealing obsolete cutouts in metal or wood doors.
What are the specifications of the NATIONAL GUARD HP90-FB filler kit?
The NATIONAL GUARD HP90-FB is a door hole cover and filler plate kit. The manufacturer part number is HP90-FB. It is designed for standard door prep openings. For exact dimensions and material composition, consult the product datasheet or contact 3G Electric for technical support.
Where to buy NATIONAL GUARD HP90-FB filler kit worldwide?
3G Electric supplies the NATIONAL GUARD HP90-FB filler kit worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact our team to place an order or request a quote for international shipping.
How to install the NATIONAL GUARD HP90-FB filler kit?
Installation typically involves positioning the filler plate over the unused door prep hole and securing it with the provided fasteners. Ensure the door surface is clean and dry before application. For specific torque or alignment instructions, refer to the manufacturer’s installation guide or consult 3G Electric.
NATIONAL GUARD Products
3G Electric supplies NATIONAL GUARD door hole covers & filler plates. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.



