Harkness fire sprinkler head (similar to Grinnell sprinkler) | Science Museum Group Collection
5) Grinnell Fire Sprinkler Coupling Clamps 2” / 60.3mm 577 | eBay
Tyco SimplexGrinnell on Twitter: "#TBT to this antique Grinnell fire sprinkler! DYK that Frederick Grinnell patented the first 'sensitive' automatic sprinkler in 1881? https://t.co/iywNXc7sLA" / Twitter
1926 Grinnell B | Fire sprinkler, Fire systems, Fire sprinklers
GRINNELL A SSU 22S2 NOS FIRE SPRINKLER HEAD UPRIGHT 3/4 NPT 155 F 68 C BRASS 96 | eBay
Fire Sprinkler Heads — 1933 Grinnell picker trunk model. Used in duct...
Manufacturer: Grinnell, 1882 | Fire sprinkler system, Fire sprinkler, Fire protection
Grinnell - Vintage 1947 - B47 -165 - Sprinkler Head - 1/2" NPT Brass - Lot of 2 | eBay
![Grinnell Upright Fire Sprinkler Head SSU-3-458 [Lot of 5] NOS – governmenttransitsurplus.com](https://cdn.shopify.com/s/files/1/0021/6629/2533/products/img7348_40661911-0077-4164-ba7c-b10e03627b39_1024x1024@2x.jpg?v=1650386037 "Grinnell Upright Fire Sprinkler Head SSU-3-458 [Lot of 5] NOS – governmenttransitsurplus.com")
Grinnell Upright Fire Sprinkler Head SSU-3-458 [Lot of 5] NOS – governmenttransitsurplus.com
![Grinnell Upright Sprinkler Head SSU-2 [Lot of 3] NOS – governmenttransitsurplus.com](https://cdn.shopify.com/s/files/1/0021/6629/2533/products/20220630125126a_1024x1024@2x.jpg?v=1657216926 "Grinnell Upright Sprinkler Head SSU-2 [Lot of 3] NOS – governmenttransitsurplus.com")
Grinnell Upright Sprinkler Head SSU-2 [Lot of 3] NOS – governmenttransitsurplus.com
Antique Fire Sprinkler Water Pressure Gauge Grinnell Co Brass 1935 Rat Rod VTG | Westwood Lighting Co
Collecting Fire Sprinkler Heads - 325° Grinnell Quartzoid upright with manual pull tab. Special purpose head combining a standard automatic sprinkler with a mechanical release tab which can be remotely operated by
Grinnell type C fire sprinkler head | Science Museum Group Collection
5 - The Frederick Grinnell dynasty - The History of Mather & Platt Ltd
__08466.1664473042.jpg?c=2&imbypass=on&imbypass=on "Grinnell 772-2 Fire Sprinkler Coupling 14 in / 355.6MM T190849 - TEAMEQUIP")
Grinnell 772-2 Fire Sprinkler Coupling 14 in / 355.6MM T190849 - TEAMEQUIP
1894 Grinnell | Fire sprinkler, Fire protection, Firefighter photography
Vintage Grinnell Upright Sprinkler SSU-3 458A FM | eBay
Grinnell/Victaulic Fire Sprinkler Coupling Lot. Excellent Working Condition | eBay
VINTAGE Grinnell B Duraspeed Fire Sprinkler Head
1963 Grinnell Vintage Ad "Automatic Sprinkler Fire Protection"
1930 Grinnell Fire Sprinkler | Fire sprinkler system, Fire sprinkler, Sprinkler
Grinnell Automatic Sprinkler Fire Alarm Bell Complete Works! - Old School Warehouse
5 - The Frederick Grinnell dynasty - The History of Mather & Platt Ltd
