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FlowPro

For Boaters

Fuel at the dock,
not the gas station line

Hauling your boat to the pump — or hauling cans down the dock and balancing a funnel — gets old fast. Drop in a FlowPro, shake, and your tanks fill themselves while you rig up.

Boater carrying a gas can and FlowPro siphon down dock stairs

Wakeboard & ski boats

Most inboard wake and ski boats take the full 1" nozzle. That's 10 gallons a minute from can to tank — a pair of 5-gallon cans is gone in about a minute each.

Jet skis & PWC

PWC filler necks are famously tight. The ½" FlowPro Jr. is built for them — and the 8-foot version reaches from the dock down to the ski.

Pontoons & winterizing

Most pontoon filler necks take up to ¾". And when the season ends, run the siphon in reverse thinking: drain carb bowls, transfer stale fuel out, and store dry.

Our picks

Rule of thumb: wake and ski boats → 1", pontoons → ¾", jet skis → ½". Fueling from a dock? Take the longer hose.

FlowPro Original — 1" ID × 6' Self-Priming Siphon10 GPM

1" × 6' Siphon

Wake boats · Big tanks

$39.95
FlowPro — ¾" ID × 8' Self-Priming Siphon7 GPM

¾" × 8' Siphon

Pontoons · UTVs · Faster flow

$34.95
FlowPro Jr. — ½" ID × 8' Self-Priming Siphon4 GPM

½" × 8' Siphon

Dock reach · Jet skis

$13.95
FlowPro Jr. — ½" ID × 6' Self-Priming Siphon4 GPM

½" × 6' Siphon

Jet skis · Pontoons · ATVs

$8.95
FlowPro Original Multi-Pack — (2) 1" ID × 6' Siphons10 GPMSave on 2

1" × 6' — 2 Pack

2-pack · Boat + home

$55.95

Common questions

Will the 1" nozzle fit my boat's filler neck?

Most wakeboard and ski boats accept a 1" nozzle without trouble. Pontoons and PWC usually don't — go ¾" or ½" for those. If you're unsure, measure the opening or send us your boat model and we'll tell you.

Is it safe with ethanol-blend gas?

Yes. The tubing is petroleum-safe and anti-static, and the nozzle is lead-free copper. Gas, diesel, and 2-stroke premix are all fine.

Can I leave it in my boat?

Absolutely — it coils to about the size of a dinner plate and weighs under two pounds. Most customers keep one in the bow storage permanently.