Blendtec 40-309-01-SRV Hard Lid for Wildside+ & Fourside Jars in Sound Enclosures, Black
The Commercial Blender Parts by Blendtec: Hard Lid, makes air tight seal, used on jars within sound enclosures, fits both Wildside+ & Fourside jars, plastic, black, NSF (10 pack) ( Blendtec - 40-309-01-SRV )