Polyaire manufacture an extensive range of sheet metal cushion boxes to suit all supply, return, relief and exhaust applications.\

Side Boot with 10mm insulation and a spigot on the long side.

Polyaire manufacture an extensive range of sheet metal cushion boxes to suit all supply, return, relief and exhaust applications.

Polyaire manufacture an extensive range of sheet metal cushion boxes to suit all supply, return, relief and exhaust applications.

Polyaire manufacture an extensive range of sheet metal cushion boxes to suit all supply, return, relief and exhaust applications.

Polyaire manufacture an extensive range of sheet metal cushion boxes to suit all supply, return, relief and exhaust applications.

Insulated Uni Boot spigot opposite open end.

Polyaire manufacture an extensive range of sheet metal cushion boxes to suit all supply, return, relief and exhaust applications.