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
J1006 Fuel Line Adapter 8 mm - 12 mm
8mm x 12mm Push-in Fitting PA 66 NBR [2 Pieces] | Tameson.com
Pope 8mm Hose Connector - 5 Pack | eBay
5pcs PVC 1/2 inch to 8mm 10mm 12mm 16mm Hose Thread Connector For Air Pump Accessory Water Pump Joint Fish Tank Tube Adapter (1l2 inch-8mm(white))
Uxcell Straight Brass Barb Fitting Reducer, Fit Hose ID 8mm to 6mm 2pcs | Harfington, 12mm x 8mm / 2pcs
Amazon.com: AIGUO 4mm 6mm 8mm 10mm 12mm 13mm 15mm 16mm 20mm Tee T/Y Hose Connector, Stainless Steel Barb Fittings, Water Gas Adapter (Size : 6mm Y) : Industrial & Scientific