Large Stack Gasket 3-1/2″ x 19″ | 631219 | B-57 Big Stack Gasket
Seal uneven stove-to-stack connections with the 631219 Large Stack Gasket. Designed for use with the 9S17312 transition stack (3-1/2″ x 17″ x 8″ round), this high-temperature fiberglass gasket ensures a tight, leak-proof seal between your stove and flue system. Perfect for installations where precision sealing is critical to safety and performance.
Key Features:
- OEM Fit Designed specifically for the 9S17312 transition stack
- High-Temp Fiberglass Withstands high heat and pressure without breaking down
- Air-Tight Seal Prevents smoke leaks and helps maintain proper stove draft
- Easy Installation May require T-bolts or tie-downs for secure mounting
Product Specifications:
- Part Number: 631219
- Also Known As: B-57 Big Stack Gasket
- Inner Dimensions: 3-1/2″ x 17″
- Outer Dimensions: 4-5/8″ x 19″
- Material: Heat-resistant fiberglass
- Application: Stack-to-pipe transition seal
Compatible Stove Brands:
- Buck
- Craft
- Carolina
- Appalachian
- Hawke
- Lilly Stoves
- Silent Flame
- Squire
- Long Manufacturing
- And many othersrefer to your owners manual for part number compatibility
When to Replace:
- During new stove or stack installation
- If the current gasket shows cracks, wear, or air leaks
- As part of routine maintenance to ensure proper sealing
Ensure safe, efficient operation with the 631219 Large Stack Gasket. Order today for a reliable fit and improved heating performance in your stove system!
