204mm x 60mm Fastseal rectangular ducting to fitting quick connector The New and Innovative Kair Fastseal system removes the need for sealant and tape by ensuring that the air leakage in and out of the ducting joint is kept to an absolute minimum. This unique design provides consistent joint quality and integrity Faster Installation It significantly reduces installation time and can be removed or re-made for alteration, maintenance and cleaning. In particular, new housing constructions are so airtight that mechanical ventilation is often deployed to ensure sufficient air changes in the building to provide hygienic, comfortable living, whilst minimising condensation. No more sealant or tape Eliminates the need to seal joints with silicon sealant or duct tape Simple Push-Fit assembly Withstands both positive and negative pressure Fastseal incorporates a uniquely shaped gasket Independently tested by the Building Research Establishment A New and innovative approach to reduce ducting system leakage