Active Aqua 1/2" Stopper, Pack of 10

Seal Off Any 1/2" Line Cleanly and Permanently

Every hydroponic system eventually has a line that needs to dead-end — whether you're capping off an unused branch or finishing out a custom run, and a loose or leaking end undoes the rest of your plumbing work.

The Active Aqua 1/2" Stopper push-fits onto the end of 1/2" tubing and seals it completely, stopping flow exactly where you want the line to end.

Because it's sized specifically for 1/2" tubing, it seats snugly without forcing or extra sealant, and the 10-pack means you'll have stoppers ready whenever your layout calls for one.

Key Features & Benefits

• Sized for 1/2" tubing — seats snugly on the end of standard 1/2" hydroponic line without forcing or extra sealant.
• Push-fit installation — caps the line in seconds — no tools, glue, or clamps required.
• Complete flow stop — seals the end of the line fully so solution stays exactly where your system routes it.
• Pack of 10 — keeps you stocked for multiple lines, future changes, or simple spares without a separate order.
• Compact, low-profile fit — tucks neatly at the end of a run without adding bulk to your layout.
• Matches Active Aqua's broader fittings line — so it pairs cleanly with the elbows, tees, and adapters already in your system.

Who Should Use This 1/2" Stopper

This stopper suits any hydroponic grower running 1/2" tubing who needs to cap an end cleanly — whether you're finishing a custom layout, capping an unused branch, or keeping spares on hand for quick repairs.

Matching Stoppers to Your Tubing Size

Active Aqua stoppers come in 1/2" and 3/4" sizes to match the most common hydroponic tubing diameters. This 1/2" version is sized specifically for 1/2" line — using the wrong size risks a loose seal that lets solution seep past, so matching the stopper to your tubing diameter is what keeps the end of the line fully sealed.

Frequently Asked Questions

What size tubing does this stopper fit?

It's sized specifically for 1/2" hydroponic tubing and push-fits directly onto the end of the line.

Do I need tools or sealant to install it?

No — it's a push-fit design that seals the line completely once it's seated, with no tools, glue, or clamps needed.

How many stoppers come in a pack?

Each pack includes 10 stoppers, enough to cap multiple lines or keep spares ready for future layout changes.

Can I reuse a stopper if I change my layout later?

Yes — because it's a push-fit fitting, you can remove and reposition it as your tubing layout changes, and the 10-pack means you'll have more on hand when you need them.

What's the other size available?

Active Aqua also offers a 3/4" stopper sized for that diameter of tubing, so you can match the fitting to whichever lines run through your system.