Description JMP-2CFVP18 2 circuit fill panel V2    1/8″  (in & out) *****(Also available in 4mm)  SKU: JMP-2cfvp4 ( 1/8′ IN AND 4MM OUT) Checkout our JMP Fill Panel in 2-Circuit . These fill panels come with precision 1-Way Fill Valves and air gauges. A neat front panel and a machined mounting plate attach the Fill Panel to the model. Normally, our Tapered Filling Adapter is used with our 1-way fill valve.  Also available is a 1-Way Valve with a screw in fill fitting.