DW45NC – FLUE PIPE (4″ to 5″)

This increaser transitions from a 4-inch vent pipe to a 5-inch run. Used when combining vent systems or when the vent run requires a larger diameter for proper draft. Double-wall construction with aluminum inner liner and galvanized steel outer casing.

Specs: 4-inch to 5-inch increaser, double-wall (aluminum inner, galvanized steel outer), Type B gas vent

Replaces: 200458, 200458-EC, DW45NC

Fits: Type B double-wall gas vent systems transitioning from 4″ to 5″

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 200458-EC
• DW45NC

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• DURAVENTINCREASER4-5
• SELKIRK4-5INCREASER