Filter King LLC

Filter King LLC supplies air filters to homeowners across Bethlehem, Pennsylvania, earning 16 five-star reviews that consistently praise product quality and customer service. The company operates Monday through Friday from 7 AM to 4 PM, specializing in both standard and custom-sized filters for residential HVAC systems. Reviewers note the company ships stock filters the same day and completes custom filter orders within just a few days.

What distinguishes Filter King from big-box retailers is their ability to source hard-to-find filter sizes that larger stores do not carry. The company manufactures custom filters to exact measurements provided by customers, solving fit problems that often arise when standard sizes do not match HVAC unit requirements. Multiple reviewers specifically mention competitive pricing alongside the unusual specialty inventory.

Customers describe specific scenarios where Filter King delivered solutions other companies could not provide. One reviewer ordered filters based on listed sizes, discovered they did not fit, and received custom-created filters with the exact measurements that solved the problem. Another customer needed unusually small 7 -inch by 7 -inch filters for a fresh air exchange system and received a 10% discount along with prompt, individualized service. A third reviewer purchased filters in separate orders and received both shipments the next day in excellent condition.