PMC EL-197 Knob, 1/4 Dia. Black replacement component for PMC spray foam guns and proportioning equipment. Designed to support reliable spray performance, proper material flow, and reduced downtime during spray foam insulation applications. SPF Depot stocks OEM and aftermarket PMC parts including side seals, mix chambers, O-ring kits, rebuild components, filters, and maintenance items for AP2, PX7, and Xtreme spray foam guns. Fast shipping available on many in-stock PMC replacement parts.
