MD Series 31393 5/16" (8mm) PVC Bullnose 8Ft, quot x 96" - - Amazon.com
uxcell PVC Barb Hose Fitting Connector Adapter 6mm or 15/64" Barbed x G3/8 Male Pipe 2pcs - - Amazon.com
uxcell PVC Barb Hose Fitting Connector Adapter 8mm or 5/16" Barbed x G1/8 Male Pipe 2pcs - - Amazon.com
Amazon.com: StarTech.com Open Slot Cable Management Raceway with Cover, 2"(50mm) W x 2"(50mm) H - 6.5ft(2m) Length - 1/4"(8mm) Slots, PVC Network Cable Hider/Wall Wire Duct, Max 80 Cables, UL Listed (CBMWD5050) :
Amazon.com: uxcell White 600C Temp Resistance PVC Fiberglass Insulation Sleeve 5M Long 8mm Dia : Industrial & Scientific
Amazon.com: Round Edge Tile Trims 8mm-10mm 2.5M Plastic PVC TMW Profiles (10 mm, Light Gray) : Tools & Home Improvement