8mm to 4mm Car Heater & Breather Hose Connector, Step Down, Nylon PA66
304 Stainless Steel Hose Barb Bulkhead Brass Barbed Tube - Temu United Kingdom
Push in 4mm 6mm 8mm 10mm 12mm 14mm 16mm PC Pneumatic T Fitting Push Fit PE Fitting Tee Hose Connector Plastic for Pneumatic - China Pneumatic Fitting, Quick Coupling | Made-in-China.com
8mm>4mm>8mm T Piece Reducer Barbed Plastic Hose Connector
1/4" BSPT Female Thread 4mm 6mm 8mm Hose OD pneumatic straight fitting Push fit | eBay
8mm>4mm>8mm T Piece Reducer Barbed Plastic Hose Connector
304 Stainless Steel Hose Barb Bulkhead Brass Barbed Tube - Temu United Kingdom
8mm to 4mm Car Heater & Breather Hose Connector, Step Down, Nylon PA66
8mm to 4mm Plastic Hose Pipe Reducer Joiner Connector Barbed Car Pond Water Air