Jump ~6.3 times higher
Jumper is a powerup that allows a player to jump much higher than normal for 30 seconds, also capable of reaching certain areas which is normally impossible under normal conditions. Enemies with equipped with Splasher can keep track of your movement.
Although in manual states the powerful allows a player to jump three times higher, technically it is approximately 6.3 times higher. The normal jump height is 48 units provided both /sv_fps 125 and /g_synchronousClients 1 are set in console. With Jumper powerup the player can jump 304 units.