HomeSaver Insulation Mix is a UL Listed 1777 Zero Clearance insulation for all HomeSaver Relining Pipe. Also use for ULC S635-00 standard. A big plus for HomeSaver InsulationMix is its 45lb. Bag weight consistency. You can depend on your bag calculations being right every time. Mix with 4-7 gallons of water.TherMix is a UL Listed 1777 Zero Clearance insulation for all HomeSaver Relining Pipe. It’s also recommended with Ventinox VG, VFT, and HiFlex Liners. Each bag fills 2.4 cu. Ft. Mix with 7-9 gallons of water.