20x20x12, DuraMAX Rigid 4V FilterMERV 12, Koch 111-603-301 old-gtin_40619943690351 RRD Series These low-cost retrofit

RRD Series These low-cost retrofit dampers make it easy to quickly add zoning to an existing duct system

Constructed with a forged brass body and a nickel-plated finish

Bristle Length: 1 11/16 inches

5 • Compatible with various HVAC systems • Durable and reliable construction • Brand: SIEMENS • Part Number: 261-02023

20x20x12, DuraMAX Rigid 4V FilterMERV 12, Koch 111-603-301 old-gtin_40619943690351 RRD Series These low-cost retrofitHigh Efficiency Minipleat Filter MERV 12 performance rating High efficiency microfiberglass or synthetic media Low pressure drop Reduced energy cost 194 square feet of media (24x24x12) Incinerable Light weight plastic, extremely rigid frame Superior dust holding and prolonged filter life The DuraMAX 4v is a rigid, extended surface air filter that is engineered to provide maximum performance and prolonged filter lifecycles, even in the most difficult