Hydro Flow® Ebb & Flow Tub Outlet Extension Fitting

Adapt Tub Outlet Fittings to Custom Flood Table Configurations

The Hydro Flow Ebb & Flow Tub Outlet Extension Fitting adds length to existing tub outlet fittings, allowing you to adapt flood table plumbing to varying wall thicknesses, adjust water level heights, or accommodate new growing media depths without replacing the base fitting. Each extension includes two gaskets for a watertight seal on both mating surfaces, ensuring no leaks at the extension joints. Manufactured to Hydro Flow's quality standards for reliable service in active flood-and-drain systems.

Key Features & Benefits

• Extends Tub Outlet Fittings: Adds length to accommodate thicker walls, new media depths, or adjusted flood level heights.
• Includes 2 Gaskets: Both mating surfaces are sealed for a watertight connection at each extension joint.
• Adapts to Custom Configurations: Combine multiple extensions to achieve the exact length your flood table requires.
• Consistent Manufacturing: Built to consistent tolerances for reliable, leak-free long-term service.

Who Should Use This

Hydroponic flood table builders and operators who need to extend existing tub outlet fittings to match wall thickness, adjust flood level height, or adapt fittings to a modified table design.

Compatibility

For use with Hydro Flow Ebb & Flow tub outlet fittings. Includes 2 gaskets. Verify thread compatibility with your existing fitting before ordering.

About Hydro Flow

Hydro Flow is a Hawthorne Gardening Company brand of hydroponic tubing and fittings, tracing to Sunlight Supply's original Hydro Flow product line and offering a modular ebb & flow fitting lineup engineered for consistent, leak-free flood table plumbing.

Frequently Asked Questions

Can I stack multiple extension fittings together?

Yes — multiple extensions can be threaded together to achieve greater reach. Ensure the base fitting can support the added lever arm of stacked extensions.

Are the 2 gaskets for the same fitting or two separate fittings?

The 2 gaskets seal both mating surfaces of the extension fitting, one at each end, for a watertight seal throughout the extended joint assembly. That means every threaded connection in the extension gets its own dedicated seal.

Do I need thread sealant in addition to the gaskets?

The gaskets provide the primary seal. PTFE tape on male threads is an additional precaution for a fully leak-free assembly.

When should I use an extension instead of buying a longer base fitting?

Use an extension when your existing tub outlet fitting just needs a bit more reach, rather than replacing the whole fitting. It's the quicker fix for a table wall that's thicker than expected or a flood level that needs adjusting.

Is this compatible with non-Hydro Flow fittings?

Compatibility depends on thread dimensions. Verify thread size and pitch match your existing fitting before ordering extensions from a different brand.