Home / Shop / Burners, Parts, and Accessories / Power Flame Type C / C4/C5 / APEM Potentiometer Knob, PFI 480560 APEM Potentiometer Knob, PFI 480560 SKU: 10002334 Categories: C4/C5, Webster Description Description APEM MPKES90B1/4 Potentiometer Knob. 679-3545-ND PFI Part number 440450 Call for quote: 780-955-2723 or email info@arcticboilers.com Related products 5 Amp Low Peak Dual Element Time Delay Fuse, PFI 926120 Power Flame, 2 Inch Snap In Sight Glass, PFI C10651 Power Flame, 5K 1-Turn Potentiometer, PFI 480030 Hauck, 3/8 inch Self-Cleaning Micro Oil Valve, PFI 262260