Crilokp 2-Pack 310 Replacement Filter — MERV 11, Fits Aprilaire 1310/2310/3310/4300

Meet the Crilokp 2-Pack 310 Replacement Filter, designed to fit prominent Aprilaire whole-house purifiers, including models 1310, 2310, 3310, and 4300. Each filter aligns with a 20x20x4 frame and has an actual size of 19.5" x 19.5" x 3.77", ensuring a snug, flush fit in standard housings. The combination of a compact profile and durable media helps support steady airflow while pursuing cleaner indoor air in everyday living spaces.

Why choose Crilokp 310

• Perfect fit — 20x20x4 dimensions are designed to align with common 1310/2310/3310/4300 units, minimizing gaps.
• MERV 11 efficiency — pleated synthetic media helps trap dust and particulates while keeping airflow responsive, with an estimated 95% dust-trapping capability noted in the data.
• Low resistance, long service life — the fiber mix supports steady airflow and a longer interval between changes.

Design highlights and packaging

• Folded side panels provide a neat look and easier handling during replacement.
• Tool-free, quick replacement — install in 1–2 minutes with no tools required, following the simple steps.

What’s included

• 2 x 310 replacement filters
• 8 x plastic rivets
• 1 x plastic panel
• 2 x paper panels

Real-world use and care

In homes with everyday dust, pet dander, or seasonal debris, a 310 filter can be part of a routine that supports cleaner air circulation. Regular replacement (about every 6 months under typical use) helps maintain filtration performance and airflow. This description refrains from medical claims and presents filtration as a possible improvement for comfort and maintenance of HVAC efficiency.

Service and support

Crilokp stands behind its products with responsive customer service. If you have questions about replacement filters, feel free to reach out for guidance or installation assistance.