How do you get two returns through a single bulkhead? It took some time but I eventually came up with this. 3D printed with PETG. Let me know your thoughts. : r/ReefTank
7/8" scale pipe fittings: 1 1/2" pipe (Q67D2MDRU) by twofoot
Post-apocalyptic building on two levels with supply pipes -4- 3D model 3D printable | CGTrader
Things that are too big to 3D print can be done in two pieces
3D Printed 1/2" Pipe Clamp by Pap4tinker | Pinshape
Classic Single" Two-piece 3D Printed Exhaust Pipe (N4Y8G7BEM) by rcnewb
3D Printable 1/2 Inch Couplings by Taylor Parsons
3D printed foods enter the kitchen
TWO TREES 3D Printer Kit PTFE Tubing Hose Pipe 1 Meter for 1.75mm Filament with PTFE Tube Cutter PC4-M6 Pneumatic Fittings - AliExpress
3D-printed switch. (a) Circuit diagram and (b) photograph of the... | Download Scientific Diagram
3D Printing Process builds Structures from two Metals
Creality 3D Printer Enclosure Two Way Pipe by Maggus | Download free STL model | Printables.com