Product Description

The Royal Style F66 Filter with Foam Insert (Part# RY 440003887, 304708001) is a genuine replacement filter designed for Royal upright vacuum systems. This filter combines standard filtration media with an integrated foam insert to capture dust, debris, and allergens while extending filter life and maintaining consistent suction performance. It's engineered to meet OEM specifications for Royal brand equipment.

The foam insert provides dual-stage filtration, trapping larger particles on the outer surface while the inner filter media captures finer dust and allergens. The filter is designed for easy installation and removal, making routine maintenance straightforward for homeowners and professionals alike.

Compatible With: Royal upright vacuum models using the Style F66 filter specification, including classic and contemporary Royal units.

Swiss Boy Vacuum is an authorized Royal parts dealer serving the Wasatch Front since 1963. Located in Bountiful, Utah, we stock genuine OEM filters and parts for all major brands. Contact us at 801-298-3656 for fitment verification and expert vacuum service.

Why Choose This Product?

• Genuine OEM Royal replacement filter—maintains vacuum performance to manufacturer specifications
• Dual-stage foam insert design—captures large debris and fine dust in one efficient filter
• Easy installation and removal—quick filter changes without tools
• Extended filter life—foam insert reduces frequency of replacements
• Maintains suction power—keeps airflow consistent across cleaning sessions
• Allergen capture—helps improve indoor air quality during vacuuming

Specifications

• Brand: Royal
• Part Number: RY 440003887
• Alternative Part Number: 304708001
• Filter Type: Style F66 with foam insert
• Included: One filter unit with integrated foam insert

Compatibility

• Royal Models: Upright vacuums using Style F66 filter specification

Use Case

This filter is essential for Royal upright vacuum owners who need to maintain peak cleaning performance and indoor air quality. Whether you're a homeowner conducting routine maintenance or a property manager overseeing multiple units, the Style F66 Filter with Foam Insert is the direct replacement that keeps your Royal vacuum operating at manufacturer specifications. Regular filter replacement extends motor life, preserves suction, and reduces allergen circulation in your home or facility.