Description
Product Overview
These four rubber gaskets are specifically designed for use in hot tubs and pools with 2-inch heater or pump unions. Made from durable black rubber material, they ensure a tight seal to prevent leaks and maintain system efficiency. Each gasket has an outside diameter of 2.78 inches and fits most standard 2-inch systems. Manufactured by American Spa Parts, this set is ideal for both professional technicians and DIY enthusiasts looking for reliable replacement parts. The product’s compact size (0.81 ounces per unit) makes it easy to store and handle during installation.
Usage
These gaskets are commonly used in residential hot tubs, spas, and pool heat pump systems where unions need replacement or repair. They’re ideal for homeowners who want to maintain their equipment without professional help. The product is especially useful during seasonal maintenance or after accidental damage from debris or corrosion. Installation is straightforward with the included how-to video guide available on YouTube under “Hot Tub Part 2” by Hot Tub Professor, making it accessible even for beginners.

Why Choose Us
This product is backed by American Spa Parts’ reputation for quality and reliability. Each gasket is manufactured to meet industry standards, ensuring a perfect fit and long-term durability. The rubber material resists degradation from water exposure and temperature fluctuations common in hot tub environments. Additionally, the inclusion of an instructional video provides clear guidance, reducing installation errors and saving time. Customer reviews average 4.3 out of 5 stars based on over 128 ratings, reflecting satisfaction with performance and ease of use.
Key Features
- High-quality black rubber construction for superior sealing and long-term durability.
- Fits most 2-inch hot tub heater and pump unions with a 2.78″ outside diameter.
- Includes four gaskets per set, making it ideal for bulk replacements or multiple units.
- Easy installation with step-by-step video guide available on YouTube for quick setup.
- Manufactured by American Spa Parts — trusted brand known for reliable spa and pool accessories.
FAQ
What size hot tub pump or heater does this gasket fit?
This set fits most 2-inch hot tub heaters and pumps with a nominal inside diameter of 2.19 inches and an outside diameter of 2.78 inches.
Is there a video guide for installation?
Yes, we provide a helpful how-to video on YouTube titled “Hot Tub Part 2” by Hot Tub Professor — search for it to get step-by-step instructions.
What material is the gasket made of?
The gaskets are made from durable black rubber designed to withstand water exposure and temperature changes in hot tub environments.
How many pieces come in one set?
This package includes four (4) gaskets, perfect for replacing multiple units or stocking up for future repairs.
Is this product discontinued by the manufacturer?
No, it is currently available and actively sold. It remains a top-rated item in its category with consistent customer feedback.






Hayward HeatPro Heat Pump W3HP50HA2 Beige Pool Heater Compressor
473711.A 472734 Auto Heat Control Board Assembly Compatible with Pentair Pool and Spa Heat Pump Replace# 473425, 473693
Reviews
There are no reviews yet.