4RV-I5 4X5 INCREASER

Used to increase pipe diameter

Used for tight installations to optimize space

RUGGED CONSTRUCTION-Strong, durable galvanized steel outer pipe has internal spacing beads to assure a uniform insulating air space between pipe walls

Each end is die formed to assure uniform sizing for strong, easy to connect joints which resist wasteful handling and shipping damage

The inner aluminum pipe is attached to the outer pipe at only one end

This arrangement allows for differential expansion between the two pipes, eliminating operational noises

Assured Safety-The double wall (pipe within a pipe) construction with its built-in air space, provides permanent insulation and keeps the inner pipe hot and the outer pipe relatively cool

Such construction creates quick, strong vent action and eliminates condensation in the pipe or overheating of nearby enclosure surfaces

Snap together non-positional lock system

Lifetime Warranty