Dura-Block CE500 Cup Eliminator Disposable paint cups NO CONTAMINATION, SAVES TIME, SOLVENTS, MONEY, and the ENVIRONMENT DURABLE, POLYETHELENE WORKS OR ADAPTS WITH VIRTUALLY ALL GRAVITY FEED SPRAYGUNS SEE PICTURE TO CHECK WITH SPRAY GUN COMPATIBILITY NO CLEAN UP, FULLY DISPOSABLE & RECYCLABLE Dura-Block Cup Eliminators Model CE500 are engineered to fit all full sized gravity feed spray guns with 16 mm female, 1.5mm thread