Nelson Sprinkler Sprays Nelson Sprays offer Four pop-heights, Five Multi-Arc nozzles, 22 fixed pattern nozzles and Three ADV models, providing effective coverage for residential and commercial applications. Nelson spray heads accept all standard female thread pop-up spray nozzles and the flush cap helps flush the system and ease nozzle installation. ADV models incorporate a heavy-duty spring and anti-drain valve to hold back up to a 10 foot elevation difference. Spray nozzles, which must be purchased seperately, are required for all spray bodies.
