I just got a used Summit SBC500B for my 50th birthday. I love it but in addition to ordering a beer line cleaning kit, I'd like to get a new beer hose. My question is: does the Summit SBC500 call for a 3/16" I.D. Vinyl with a hex nut on one end OR do I get one with a hex nut on BOTH ends? Believe it or not, I called Summit directly and they don't know !!! Thanks ... P.S. if anyone wants to recommend the BEST beer line cleaning kit, please feel free to do so.