New Arrival 60mm to 51mm Motorcycle Exhaust Adapter Reducer Connector Pipe for 60mm Exhaust 51-38mm - buy at the price of $2.42 in aliexpress.com | imall.com
Intex/Bestway Hose Adaptor A for 32/38mm pool hose - HeatPumps4Pools
WHEATON® 38mm Screw Cap Adapter for 32mm Bottle Top Dispensers