Allied Thru-Wall Drywell Fitting [White] (990451-000) — Thermowell Through-Wall for Spa Walls

Allied Innovations’ Thru-Wall Drywell Fitting in White (990451-000) is a durable, easy-to-install thermowell through-wall solution designed for spas and hot tubs. Built for reliable temperature sensing, it provides a clean, watertight passage through the spa wall and is a trusted replacement part in the Allied spa ecosystem.

• Through-Wall Thermowell Design: White plastic fitting engineered to pass sensor wiring through the spa wall while keeping the interior environment protected.
• 5/16" Thermowell with Nut: Accommodates a standard 5/16" thermowell sensor, secured with a nut for a stable, leak-resistant connection.
• Hole Size Requirement: Requires a 1-1/4" mounting hole, a common specification for spa installations.
• Watertight Seal: Includes an O-ring to seal the joint and prevent moisture or spa chemical intrusion.
• Brand & Replacement Part: From Allied Innovations, a trusted name in spa replacement parts that supports Len Gordon and related systems.
• Finish: White finish designed to blend with typical spa walls and interiors.

This drywell fitting is ideal for residential spa maintenance and upgrades, helping ensure sensor accuracy and long-term reliability. The design focuses on a straightforward installation, secure fit, and durable performance in the harsh spa environment, making it a practical choice for replacing worn or aging thru-wall thermowell components.