I have 5 sets of b3 quick discos 1/2 mpt on the female side, 3/8 barb on the male side, $20 each set. I also have 2, 3/8 barb x 1/2 mpt with 1/2" full couplers $8 each. And an extra male QD $5. I'll let the whole lot go for $120
Thanks
Andy
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