These are to fit a internal gutter size that is shown in the photos fit a 19mm pipe. As with all 3d printed parts there maybe marks where support is used in the printing process ,this will be sanded back and invisible when an outlet hose is fitted.
Halls Popular Greenhouse Gutter Kit 2 Outlets And 2x Stop Ends high flow
For Halls Popular Greenhouse Gutter Kit 2 Outlets And 2x Stop Ends high flow
High strength Halls Popular Greenhouse Gutter Kit 2 Outlets & 2 Stops high flow
XL Halls Magnum Universal Greenhouse Gutter Kit extra long hosepipe fitting
High strength Halls Popular Greenhouse Gutter Kit 2 Outlets & 2 Stops hozelock