Turcon® Excluder® SN, often referred to as the "Notch" variant, is a high-performance, double-acting PTFE scraper designed for demanding hydraulic and pneumatic applications. The Excluder® SN (Notch) combines aggressive debris scraping with effective lubrication retention in one compact, groove-fitting design. It's especially suited for high-cycle, dynamic hydraulic systems (e.g., industrial actuators or mobile machinery) that require protection against abrasive contaminants without sacrificing seal life or performance. The O-Ring is not included with this item.