The 400113 Tee Drain is a purpose-built connector that streamlines walk-in tub drainage by linking your door drain directly to the tub’s plumbing with precision and reliability. If you’re upgrading or replacing a door drain setup, this Tee Drain provides a clean, straightforward path from tub to waste line, reducing guesswork and potential leaks.

Smart, purpose-built design for walk-in tubs

• Precise end connections: 1 1/2" socket on one end and 1 1/2" spigot on the other, with a 3/8" barb for secure hose attachment—built to fit standard 1 1/2" piping and common 3/8" hose fittings.
• Door drain integration: specifically engineered to connect the door drain to the tub’s drain body, delivering a cohesive, integrated drainage solution for walk-in tubs.
• DD-11 compatibility: a familiar pairing for repairs and retrofits, minimizing compatibility concerns during installation.
• Space-conscious retrofit: designed to keep the drainage path direct, helping reduce leak points in tight bathroom spaces.

Who benefits from the 400113 Tee Drain

• Plumbers and contractors performing walk-in tub installations, replacements, or door drain upgrades where a 1 1/2" drain connection is required.
• DIY homeowners tackling door drain retrofits or repairs who want a straightforward, dependable connection between the tub and waste line.

How it works in practice

Acting as the hub between the tub and the door drain, the Tee Drain creates a direct, secure pathway for wastewater. Its socket, spigot, and hose barb configuration minimizes misalignment and simplifies the assembly process, especially when space or positioning is constrained.

Installation tips for best results

• Before assembly, verify all connection points are clean and free of debris to prevent leaks.
• Make sure the 3/8" barb is fully seated and secured with an appropriate hose clamp or secure hose connection to prevent slippage.
• Carefully align the socket and spigot ends prior to final assembly, and use compatible adapters or joint materials suited to your piping system.
• If you’re pairing this Tee Drain with a door drain replacement, have the DD-11 on hand to ensure a seamless match and dependable performance.

Specifications and practical fit

• End connections: 1 1/2" socket (one end) and 1 1/2" spigot (the other)
• Barb size: 3/8" for hose attachment
• Support for standard bathroom drainage configurations, making it a dependable choice for walk-in tub projects
• Ideal pairing: designed to align smoothly with the DD-11 door drain

What to expect with the 400113 Tee Drain

An intentional, field-friendly solution that simplifies installation, lowers the risk of leaks, and provides a reliable drainage path from your walk-in tub door drain to the waste line. By using a dedicated size combination and a proven pairing with the DD-11, you’ll experience a cleaner install, fewer guesswork moments, and a dependable seal that stands up to daily bathroom use.