Unleash the power of Selkirk’s 3″-7″ Low Profile Double Wall Increaser the go-to solution for enhancing your gas venting system. Crafted for residential, industrial, and light commercial applications, this increaser is your ticket to efficient and space-optimized installations.

The innovative double-wall design features an aluminum inner liner for rapid heat-up, promoting a robust draft, while the galvanized outer wall ensures resilience against outdoor elements. Selkirk’s dedication to precision is evident in every detail, from the Snap Lock coupler with optional Lock Tab to the smart Die Formed male end that eliminates sharp edges. Achieve perfection with a 360 rotation for ideal alignment and revel in the security of a 1″ clearance to combustible materials.

Selkirk doesn’t just offer products; it provides peace of mind. Backed by the Smart Choice warranty on all components, this increaser is a testament to reliability and performance. Approved to UL 441 standards in the U.S.A., Selkirk’s RV line guarantees a seamless gas venting experience. Step into the future of venting solutions with Selkirk.

Benefits:

• Optimize space in tight installations
• Rapid heat-up for a strong draft
• Resilient galvanized outer wall for outdoor protection
• Secure Snap Lock connection with optional Lock Tab
• 360 rotation for perfect alignment
• Die Formed male end eliminates sharp edges
• Smart Choice warranty for peace of mind

Features:

• Aluminum inner liner
• Galvanized outer wall
• Double-wall design with 1/4″ uniform airspace
• Snap Lock coupler with optional Lock Tab
• 360 rotation for perfect alignment
• Die Formed male end for safety
• Smart Choice warranty on all components

Specifications:

• Outer material: 28 GA galvanized steel
• Inner liner: Aluminum
• Clearance to combustible: 1″
• Approvals: Listed to UL 441 in the U.S.A.

Warranty:Lifetime LimitedWarranty

Refer to the Smart Choice Warranty for full warranty details.

Downloads:

• Download Product Catalog
• Download R-RV Type B Gas Vent Flyer
• DownloadProduct ListRV Type B Gas Vent
• DownloadRV Type B Gas Vent Installation Instructions
• DownloadRV Type B Gas Vent Installation Guidelines
• DownloadSubmittal Specifications
• DownloadChimney Venting Sizing Handbook
• Download Smart Choice Warranty Information

About The Manufacturer:

Selkirk products set themselves apart from the competition with their proven quality, safety, ease of installation, and lasting performance. Selkirk is one of the most trusted brands in the industry because we stand behind everything we do. From assisting with product selection, providing education and installation assistance, to our industry-leading warranties, we ensure your success every step of the way.