Selkirk 3" to 4" Increaser (Pellet Vent - UPP - Type L / PL) d20.9 DuraFlex SS relining systems ensure

DuraFlex SS relining systems ensure safe and efficient venting of heating appliances while protecting the masonry chimney from the damaging effects of flue product condensation

1 Type of Gas Natural Gas Ignition Millivolt Vent Type Direct Vent Venting 4 x 6 5/8 Installation Zero Clearance Orifice 2

One part covers 2 diameters

or upstairs at a maximum distance of 10' (3 m)

Burn time: 8 hours

Selkirk 3" to 4" Increaser (Pellet Vent - UPP - Type L / PL) d20.9 DuraFlex SS relining systems ensureSelkirk 3" to 4" Increaser (Ultimate Pellet Pipe Type L PL) Transition from a 3" to a 4" UPP. Painted black or unpainted. Pellet Vent UPP Type L PL The superior silicone gasket technology seals the system and provides a leak free connection. Easy to assemble for safe and secure connection. Easy to disassemble for inspection and cleaning. Laser welded inner and outer pipes ensure a consistently round pipe with a clean profile. 3" to 4" Diameters: Easy