Carrier 317659-402 Filter 16.5×21.5×1

The Carrier 317659-402 is a genuine OEM replacement filter designed to deliver consistent, reliable air filtration performance in compatible Carrier HVAC systems. Engineered to exact factory specifications, this filter ensures a precise fit and helps maintain optimal indoor air quality and system efficiency.

Product Overview

This 1-inch thick panel filter measures 16.5″ x 21.5″ x 1″ and is a direct OEM replacement for select Carrier equipment. Using a genuine Carrier filter helps protect your system’s heat exchanger, coils, and blower components from dust, debris, and airborne particles that can reduce efficiency and lead to costly repairs.

Key Features

• Genuine Carrier OEM replacement filter
• Nominal dimensions: 16.5″ x 21.5″ x 1″
• Designed for precise, drop-in fit in compatible Carrier systems
• Helps maintain system airflow and efficiency
• Protects internal components from dust and debris buildup
• Supports healthy indoor air quality

Specifications

• Brand: Carrier
• Part Number: 317659-402
• Filter Size: 16.5″ x 21.5″ x 1″
• Filter Type: Panel / Flat Filter
• Application: Carrier HVAC Systems

Why Choose a Genuine OEM Filter?

OEM filters are manufactured to the same standards as the original equipment, ensuring compatibility and performance that aftermarket alternatives may not match. Regular filter replacement — typically every 1 to 3 months depending on usage and environment — is one of the most important steps in maintaining HVAC system health, reducing energy consumption, and extending equipment life.