Compare Jobe Valve Lines: Rojo vs. Topaz vs. Megaflow vs. Vortex

Jobe makes four distinct float valve lines, and the right one for your system depends on three things: how much water you need to move, where the valve needs to mount, and what conditions it has to survive. Here's how they stack up.

At a Glance

Rojo Topaz Megaflow Vortex
Flow Rate Up to 4 GPM (7 GPM High-Flow) Up to 80 GPM Up to 90 GPM Up to 159 GPM (600 L/min)
Inlet Size 1/2"–3/4" 3/4"–1 1/4" 3/4"–1 1/4" 1 1/4"–2"
Mounting Above or below water Above or below water Underwater only Above water (Bottom Fill: underwater)
Pressure Range 0–150 PSI 5–100 PSI (Standard/Industro); up to 150 PSI (Differential/Partfill/Compact) 5–150 PSI 5–100 PSI (Standard/Bottom Fill); up to 150 PSI (Differential/Partfill)
Max Temperature ~115°F 140°F (176°F for Industro) Not rated for hot water Not rated for hot water
Best For Small tanks, troughs, tight spaces General-purpose, most versatile Livestock troughs, freeze/damage protection Large tanks, industrial, high-volume

Rojo: The Low-Flow Workhorse

If your tank doesn't need much water fast, Rojo is the simplest, most compact option. It's mechanically operated (no electronics), can mount above or below the waterline, and its Compact variant fits spaces other valves can't. Best for small livestock troughs, irrigation holding tanks, and aquaculture ponds where high flow would just create unnecessary turbulence.

Choose Rojo if: your tank is small-to-medium, demand is steady rather than a large group drinking at once, and you want the simplest possible valve to install and service.

Topaz: The Versatile Middle Ground

Topaz is Jobe's most adaptable line — it mounts above or below water, comes in five configurations (Standard, Differential, Partfill, Compact, Industro), and covers a wide flow range depending on inlet size. The Industro variant is the only Topaz model rated for genuinely hot water (up to 176°F), making it the standard choice for car wash and industrial hot-water applications.

Choose Topaz if: you need flexibility in mounting position, you're running a pressure-controlled pump (Differential), you're on rainwater harvesting (Partfill), space is tight (Compact), or you need hot water resistance (Industro).

Megaflow: Built for Underwater Duty

Megaflow trades mounting flexibility for protection — it's underwater-mounted only, which keeps the mechanism safe from freezing and from livestock damage. That makes it a strong default for exposed farm troughs where an above-water valve would be vulnerable to weather and animals.

Choose Megaflow if: your valve will be exposed to livestock, freezing temperatures, or general outdoor wear, and you can mount it underwater.

Vortex: Maximum Flow for Large Systems

Vortex is Jobe's highest-capacity line, built for large tanks, cisterns, cooling towers, and commercial or industrial water storage rather than a standard stock tank. Its Differential and Partfill variants extend that capacity to pump-protection and rainwater-backup applications at scale.

Choose Vortex if: you're filling large storage tanks or industrial systems, need the highest flow rate in the lineup, or are protecting a pump from short-cycling in a high-volume system.

Quick Decision Guide

  • Small trough, tight budget, simple jobRojo
  • Not sure what you need, want flexibilityTopaz
  • Livestock trough exposed to weather/animalsMegaflow
  • Large tank, industrial, or highest flow neededVortex
  • Hot water (car wash, boiler room) → Topaz Industro specifically — the only line rated above 140°F

Every Jobe Valve is backed by a 2-year warranty against manufacturing defects. Not sure which valve fits your system? Contact us and we'll help you find the right match.