Heater O-Ring/Gasket, Waterway, 3" (60-0020-K)

The Heater O-Ring/Gasket, Waterway, 3" (60-0020-K) is a precise replacement seal designed for pool and spa heaters. Built for reliability, it helps maintain a tight, leak-free connection at the waterway union, making maintenance and service easier for both homeowners and technicians.

• Inside Diameter: 2-3/4" (ID)
• Outside Diameter: 3-1/4" (OD)
• Thickness: 1/8"
• Part Type: O-Ring/Gasket for heater waterway connections
• Application: 3" heater unions; designed to seal the waterway interface and prevent leaks
• Manufacturer: Therm Products

Therm Products is a trusted name in pool and spa maintenance, delivering dependable, purpose-built seals that technicians rely on to keep heaters operating efficiently. This gasket is a straightforward, durable replacement that restores a snug fit, minimizes downtime, and protects against water intrusion at the heater union.