Sparex source: https://us.sparex.com/o-ring-pipe-pipe-o-d-inches-3-8-bs906-70-shore-3788.html Product: O' Ring Pipe Pipe O D Inches: 3/8'' (bs906) 70 Shore - Sparex S.3788 SKU: S.3788 Listing note: O'Ring - (O Rings for Pipe Fittings - BS1806 - AS568A) Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.