2 Jumper Assemblies Kit: (2 each) 24-inch-long Inflation Jumper for greenhouse. Allows one-sided installation without disassembly of plastic membrane to install. 1-1/2” diameter tube and a fitting on each end. Install between different envelopes on the greenhouse, for instance from the roof to an end wall to provide air coupling between the two envelopes without having a second inflation fan.
