Flexifast 1/4 3m Pre-Insulated Ready Made Air Conditioning Pipe Tube Hose Secure flexibility that saves time Flexifast is a reliable pre-insulated system solution to connect indoor and outdoor units of split- and multi-split air conditioning systems. The flexible rubber hose is assembled with straight end fittings pre-applied to each end and the complete system comes pre-insulated with closed cell AC insulation. The system is easy to install, reduces both cost and time of assembly, avoids condensation and is suitable for use with the new refrigeration gases R134, R404, R407 & R410. The benefits of being well prepared Suitable for new refrigerants R134, R404, R407 & R410 Built in vapour barrier prevents condensation Fast and easy to apply. Application Areas: Air-conditioning units. Refrigeration systems. Cold shelves. Ancillary equipment.