Extruder Filament Sensor – P1 Series $11.99 Extruder Filament Sensor - P1 Series quantity Add to cart SKU: BBL-41294984544392 Category: Parts Description Description Related products AP Board – P1S $39.99 Add to cart Activated Carbon Air Filter – X1/P1 Series $5.99 Add to cart AC Board – X1 Series and P1 Series $24.99 Add to cart MC to AP Cable – P1 Series $7.99 Add to cart