Union Gasket Flat 1.5" (2-5/16"OD) for Tee Water Heater to Pump seal

Seal the vital connection between your Tee‑style water heater and Whirlpool pump with the Union Gasket Flat 1.5" (2-5/16" OD) from BALBOA WATER GROUP. This purpose‑built gasket stops leaks fast and maintains steady system pressure, so you can rely on your heater‑to‑pump joint without second‑guessing during hot water cycles.

Distinctive design that delivers a reliable seal

The flat, rib‑free profile spreads compression evenly across mating surfaces, eliminating common leak points that can appear with ribbed or O‑ring styles. Made from a chemically‑resistant polymer, this gasket resists the wear from hot water, minerals, and routine cleaners, offering longer service life in demanding spa lines than softer elastomer materials.

Precise fit for your Whirlpool‑style setup

Designed to fit standard Whirlpool configurations, it works with 1‑1/2" unions and heater unions with a 2‑5/16" outside diameter. Part number 711-4000 ensures you’re selecting the correct replacement at a glance, making maintenance straightforward and confident.

When and why to replace

• You notice a drip or steady leak at the union between the Tee Water Heater and the Whirlpool pump.
• During routine maintenance or servicing of the heater‑pump connection.
• The existing gasket shows wear, deformation, or loss of compression over time.

What this gasket delivers in practice

• Reliable seal through thermal cycling: Maintains contact and sealing as temperatures rise and fall during heating and cooling.
• Durable under high‑demand conditions: Chemically‑resistant polymer resists mineral buildup and cleaners, reducing replacement frequency.
• Fast, straightforward replacement: Compatible with standard 1‑1/2" unions and 2‑5/16" OD heater unions—swap in a single part without redesigning the joint.

Ideal use scenarios

Perfect for homeowners performing maintenance on Tee‑style water heaters paired with Whirlpool pumps, service technicians replacing aging gaskets, and anyone aiming to restore a reliable seal at the heater‑to‑pump connection. When addressing leaks at this junction, this flat gasket provides a precise, durable solution that stands up to hot water and routine servicing.

Specifications at a glance

• Material: Chemically‑resistant polymer
• Profile: Flat gasket with no O‑ring rib
• Size compatibility: Fits 1‑1/2" unions; 2‑5/16" outside diameter on the heater side
• Part number: 711-4000
• Application: Union connection between Tee Water Heater and Whirlpool Pump