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20'x48' Quonset greenhouse frames are also known as “high tunnel greenhouses
The PTP series features a stainless steel tubular heat exchanger which comes with a 10-year heat exchanger warranty
Operate from both sides to double productivity
Channel wire lock systems are efficient
The new PPH-3 features a reduced diameter protective sleeve and threaded body that will allow the probe to be installed into standard 3/4" PVC tee fittings
Hortitech 20'x50' Auto Ventilated Quonset Greenhouse greenhouse floors 20'x48' Quonset greenhouse frames are