EZ-FLO Coupler with Ball Valve (Hose Thread)

Fine-Tune Your EZ-FLO Fertigation Rate with Built-In Ball Valve Control

The EZ-FLO Coupler with Ball Valve (Hose Thread) — part number 3060-BV — is an essential accessory for gardeners and growers who need precise control over their fertilizer injection rate. This hose-threaded installation coupler features a 3/4″ Female Hose Thread (FHT) inlet and a 3/4″ Male Hose Thread (MHT) outlet, making it simple to connect directly into any standard hose-bib drip irrigation head assembly. It is compatible with all EZ-FLO fertilizer injector makes and models and does not require the use of the EZ-FLO flow disc system.

An EZ-FLO fertilizer injector typically requires a minimum water flow of approximately 120 gallons per hour (GPH) to operate. By partially closing the ball valve on this coupler, you restrict the bypass flow and force more water through the EZ-FLO injector itself — enabling the system to function reliably even at lower-than-normal flow rates. This same adjustment also allows you to slow down and fine-tune the fertilizer dilution rate, giving you greater control over how quickly your nutrients are dispensed. The coupler is constructed from Schedule 40 PVC with durable 1/4″ stainless steel barbed tubing connectors for long-lasting, corrosion-resistant performance.

For a complete, properly protected fertigation setup, pair this coupler with a drip irrigation filter, a pressure regulator, and a backflow preventer to protect your potable water supply.

• Low-Flow Compatibility: The built-in ball valve lets you restrict bypass flow, allowing your EZ-FLO injector to operate at water flows below the standard 120 GPH minimum — ideal for low-volume drip systems.
• Adjustable Dilution Rate: Partially closing the valve increases differential pressure across the injector, giving you direct, real-time control over how fast fertilizer is dispensed into your irrigation line.
• Universal EZ-FLO Compatibility: Works with all EZ-FLO hose bib fertilizer injector makes and models. No flow disc required.
• Durable Construction: Schedule 40 PVC body with stainless steel 1/4″ barbed inlet and outlet tubing connectors for corrosion resistance and long-term reliability.
• Standard Hose Thread Connection: 3/4″ FHT × MHT connections install in seconds on any standard outdoor hose bib, timer, or filter outlet — no tools required.
• Sold Separately: A convenient replacement or upgrade option if your existing coupler lacks ball valve control.

Detailed specifications for system planning and compatibility.

Connect your EZ-FLO injector to your hose bib and dial in the perfect fertilizer rate.

Step 1: Assemble Your Head Assembly
Starting at your outdoor faucet (hose bib), install your backflow preventer first, then your irrigation timer. A backflow preventer is essential when using any fertilizer injector to prevent nutrients from contaminating your potable water supply.

Step 2: Install the Ball Valve Coupler
Thread the 3/4″ Female Hose Thread (FHT) inlet of the 3060-BV coupler onto the outlet of your timer or valve. Hand-tighten firmly to create a leak-free seal with the internal washer. Then connect the 1/4″ flexible tubing from your EZ-FLO injector tank to the stainless steel barbed tubing connectors on either side of the coupler body.

Step 3: Attach the EZ-FLO Injector Tank
Place your EZ-FLO injector tank on the ground near the faucet. Connect the 1/4″ flexible tubing from the tank’s inlet and outlet ports to the two stainless steel barbed connectors on the coupler. Fill the tank with your chosen water-soluble or liquid fertilizer.

Step 4: Connect to Your Drip System
Attach the 3/4″ MHT outlet of the coupler to your pressure regulator, followed by your inline filter and then your drip mainline tubing.

Step 5: Adjust the Ball Valve for Your Flow Rate
Turn on the water and allow the system to run. If operating at low flow rates (below 120 GPH), gradually close the ball valve by rotating the handle. This restricts bypass flow and forces more water through the injector, activating it at lower flows. To slow down fertilizer injection — and increase the time it takes to dispense the tank — close the valve further to reduce differential pressure. Refer to the EZ-FLO CBV feed chart (available from EZ-FLO) for specific injection rate guidance.