This is a replacement of the catalytic combustor that can be used in many different catalytic wood stoves

The Nu-Tec and Sotz Retrofit Catalytic uses (2) of the ACI-47 catalytic

The ACI-47 catalytic are sold individually

25 cells

Wrapped in gasket, no can

Catalytic Combustor Care and Replacement Manual

Measurements: 5¾" round x 1½" high