2.36'' Stainless Steel Vent Wall Thimble for Indoor Gas Water Heater Thickening Stainless Steel Vent Wall Thimble,for Indoor Gas Tankless Water Heater,Ideal for Home Heating and Bathroom Setups

Durable and long-lasting - The 2.36-inch inner diameter 304 stainless steel wall top pipe provides complete ventilation and fire protection functions, only suitable for air pipes with a diameter less than 2.36 inches.

Horizontal wall top pipe is used for horizontal exhaust ventilation, only passing through the outer wall, suitable for tankless water heaters CA318, CA318W-LP, CA318-NG and other models, not suitable for CA422 water heaters.

Adjustable thickness - The size of the wall top needle waterproof board is 9.85 inches x 9.85 feet, with tight internal connections. To accommodate thicker walls, the thickness can be adjusted from 4.3 inches to 7.9 inches.

Corrosion resistant material - double walled tube, made of stainless steel, with polished surface to keep the outer wall of the chimney cool while ensuring high flue gas temperature for optimal ventilation performance.

Attention: Before purchasing, please confirm that the diameter of your exhaust pipe is less than 2.36 inches, otherwise it will not be compatible with your exhaust pipe.