Combo-Flo™ Red Fuel Single Model #FS-500-1 (outlet port opposite inlet) & FS-500-2 (bottom outlet port) are the most compact and lightest high flow fuel valve available in the market.

This very high flow fuel valve is designed to be paired with the Combo-Flo™ Blue Nitrous Single. Their design allows for the cleanest, tightest plumbing you can imagine.

Model FS-500-1 (pictured here) has side outlet port. Model FS-500-2 has bottom outlet port.

Easily retrofits to existing systems!

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