I wasn't able to wait for Louis' RK deal but wanted to say I have an RKL on every system -even the seahorse fry set up. That makes 3 RKL systems in this house.
Once you get one it's hard to go back to living without it. They make it so much better/easier/less hassle/eliminate human error. Definitely worth the hundred bucks If you don't have one yet, you should consider this...