Technical description:

Excellent pattern stability even in moderate wind conditions.
The Heavy Water Crystal Arch nozzle is water level independent and can be located in “dry” areas.
The Heavy Water Crystal Arch nozzle has an ANSI flanged connection.
Special compression gaskets are available for correcting up to a 2° non-plumb installation.
For proper performance the water supply should be reasonable non-turbulent. This can be achieved by providing a straight length of feed pipe prior to the nozzle flange equivalent to eight pipe diameters (6″ pipe = 4′ minimum straight run).
Provide a basket strainer for nozzle protection. Maximum 1/8″ diameter perfoperforations.

http://fantasyfountains.com/wp-content/uploads/2019/01/heavy_water_crystal_arch.pdf