Models 3H and 6H air horns offer the industrial market a variety of tones and sizes to meet a wide-range of needs. Our air horns feature corrosion resistant cast aluminum alloy housing and include long-lasting stainless steel diaphragms.
These precisely machined horns will yield peak performance at proper working air pressures. Model 3H has a threaded female pipe connection. Model 6H features flanges for additional support. The horn frequency (pitch) depends on both the diameter and length of the projector.
Models 3H and 6H air horns can be used indoors, outdoors, or anywhere compressed air can be provided. They also are the loudest audible signals offered for indoor applications. The horns require a 120VAC air valve (sold separately). Use Model EVS with the 3H and Model EVL with the 6H. They are not subject to sparking and are ideal for hazardous locations (valves need to be located in a non-hazardous location).


Voltage 120VAC
3H Air Horn (3-inch)
Mount 3/8" Pipe
Net Weight 1.60 lb
Shipping Weight 2.10 lb
Diaphragm Diameter 3.0"
Air Consumption (Cubic Ft. Per Second) 0.20 cu. ft. per sec.
Decibel Output 112dBA @ 10' (122dBA @ 1m)
Frequency Response 750Hz
Mount 3/4" Pipe
6H Air Horn (6-inch)
Decibel Output 122dBA @ 10' (132dBA @ 1m)
Air Consumption 0.45 cu. ft. per sec.
Frequency Response 295Hz
Pipe Size 0.75"
3H 4.75"
6H 9.5"
3H 6.63"
6H 6.5"
3H 4.88"
6H 12.38"
Diaphragm Diameter
3H 3.0"
6H 5.0"
Pipe Size
3H .038"
6H 0.75"


Product Literature
Product Manuals

Ordering Information

Model Types
Model Description UPC
3H Air horn, 3", high pitch 782979235101
6H Air horn, 6", high pitch 782979235705
Product # Description UPC
EVS-120 Air valve, 3" air horns, 120VAC 782979370307
EVL-120 Air valve, 6" air horns, 120VAC 782979370109