CPS wrote:why pay so much for just a cps 2000 mk1 in the box? you have to take it out if you want to use it.
USSA wrote:the check valve is at a different level so it can be pressurized for longer. It also has a few more feet of range. The mk2 is argued by many to be very similar in preformance to a 2500. I however have never used a mk2 so i can't judge
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