Chapin HydroFeed Fertilizing Injection System - 2 Gal Capacity

Steady Hose-Powered Feeding - 2 Gal Tank

Hose-end sprayers often dilute their mix as they empty, so the first plants get a stronger feed than the last. This injector adds clean water to the tank as concentrate leaves it. Because the concentrate is denser than water, it settles at the bottom, the outlet tube draws from there, and the water stays on top. The tank turns clear when the concentrate runs out.

The 2 gal capacity suits small gardens, trial feeding and home growers who want to treat a modest area without mixing large batches. Growers with larger areas can refill as needed.

Key Features & Benefits

• Water-back-into-tank design — keeps the concentrate from diluting as it feeds.
• Sprinkler and hose spray compatible — lets you feed through the setup you already use.
• Adjustable feed rate — set from 1 to 10 ounces of product per gallon.
• Threaded 3/4 in hose connection — plastic and brass threads attach to a standard garden hose.
• Nitrile in-tank seals — built for use with liquid concentrates.

Who Should Use Chapin HydroFeed 4720

Home gardeners and small-scale growers who feed liquid concentrates through a hose or sprinkler line and want an even feed from start to finish.

About Chapin HydroFeed 4720

Chapin makes the HydroFeed 4720 as a 2 gal fertilizer injector for liquid concentrates. It runs on water pressure and carries a 1 year limited warranty. A product manual is available from the manufacturer.

Frequently Asked Questions

Q: How does it differ from a standard hose-end sprayer?
A: It adds water back into the tank as concentrate is drawn out. The concentrate stays at the bottom and the water sits above it, so the mix does not thin out as you feed.

Q: How do I know when the concentrate is used up?
A: The tank turns clear. That shows only water remains and the tank needs refilling.

Q: What can I put in it?
A: It is made for liquid concentrates. Check the concentrate label for compatibility and do not use dry products.

Q: Can I adjust the strength?
A: Yes. The rate adjusts from 1 to 10 ounces of product per gallon.

Q: What does it need to run?
A: It runs on your water pressure through a 3/4 in threaded hose connection. No electricity is needed.

Q: Does it work with sprinklers?
A: Yes. It works with sprinklers and direct hose spray applications.