... , 50mm, 65mm, 76mm are available)Joint size: (1", 1-1/2", 2", 2-1/2", 2", 2-1/2", 3") Product Information1. Feature: ASCO ... series, copy, same size with ASCO 2. Material ... We do our best to ship your order in 1 week after receive your payment3: We'll tell you ... about the dust collector filter valve. d 1.5" dust collector filter valve