This blaster sported a hefty 6.5L backpack with a hose to feed the blaster unit which housed about 1.5L of water in its three air-pressure-based firing chambers. The nozzle opening on this blaster was larger than any other water blaster found during its time. The SS 300 produced a stream that even rivals more recent CPS-class blasters. Its trigger-mechanism is the top-mounted lever found near the nozzle of the blaster.
The limitation with this type of trigger is that one cannot pump and fire at the same time. The pump of the blaster moves roughly 80mL of water with every pump from the tank into the firing chambers. The blaster is connected to the reservoir via a clear hose with a shut-off valve at the blaster side. Interestingly, the hose could be detached from both the blaster and the reservoir.The backpack reservoir, itself, has two straps for mounting on one's shoulders. Its backpack, however, is not that comfortable to carry due to its non-flat surface which ends up in contact with one's back during transport. The backpack can be filled through either of its caps. While the SS 300's output and power were definitely unmatched in its day, the general feel of the blaster is rather flimsy. The firing chamber tanks are large and the blaster gets top-heavy when the firing chamber is full of water. The SS 300 is a powerful blaster, but potentially high maintenance due to concerns over its durability as many others have noted as well. Overall, the Super Soaker SS 300 is a potent blaster, able to outclass any SS or XP-class blaster and on par with even the mid-sized CPS/Monster series. Power, performance, and water supply are near the top for any Super Soaker.
Its main drawbacks are its weight, awkwardness of the firing mechanism, and its overall lack of durability. The water supply is large enough to last a good deal of time even in the wildest of squirt-fests.Its sheer size also makes one's opponents think twice before coming within range. The size of the firing chamber lets one unload extreme amounts of water. The backpack should have been designed a little better. One nozzle setting means that one cannot conserve water when one it low. The structural design of this blaster makes it not very durable. Do not fall while carrying this blaster. The item "Air Pressure Super Soaker SS 300 1992 Larami Complete Working Vintage Rare" is in sale since Tuesday, August 22, 2017. This item is in the category "Toys & Hobbies\Outdoor Toys & Structures\Sand & Water Toys\Squirt Toys". The seller is "timelessrelics" and is located in Chicago, Illinois. This item can be shipped to United States.