SD75 SMOKE GRENADE® - HIGH OUTPUT SMOKEThe SD75 High Output Smoke is Canada's largest Consumer Smoke device, delivering an enormous payload of smoke over 90 seconds, with an output higher than that of most Military Smoke Grenades.. The SD75 is geared toward Professional use but is on sale to the public. This Smoke provides unparalleled density and coverage! The SD75 is currently available in 5 colours in Canada (with more coming soon), Uses include Military, Law Enforcement, Security,