Description
The Watts 0881428 is a GB-D series 1-1/4″ high-temperature gasket engineered to provide a durable, leak-free seal in demanding hydronic heating, steam, and hot water system applications. Manufactured by Watts — a trusted name in flow control and plumbing products — this replacement gasket is designed to maintain its integrity under elevated temperatures and pressures, making it an ideal choice for boiler connections, flanged valves, and piping assemblies where standard gaskets may fail.
Key Features
- High-temperature construction for use in hydronic, steam, and hot water systems
- 1-1/4″ (GB-D) sizing for precise, drop-in replacement fit
- Engineered to maintain a reliable seal under thermal cycling and elevated pressure conditions
- Compatible with flanged valves, boiler connections, and related piping assemblies
- Genuine Watts OEM replacement part — ensures proper fit and long-term performance
Product Specifications
- Brand: Watts
- SKU / Part Number: 0881428
- Series: GB-D
- Size: 1-1/4″
- Type: High-Temperature Gasket
Applications
- Hydronic heating systems
- Steam and hot water piping
- Flanged valve and boiler connections
- Commercial and residential HVAC plumbing assemblies
Keep your hydronic and steam systems running at peak efficiency with this genuine Watts high-temperature gasket. Order the Watts 0881428 GB-D 1-1/4″ Hi-Temp Gasket from Jackson Systems for fast, reliable fulfillment.









