Reliance 100112163 PVC Concentric Vent, 3" BESTSELLERS Made of a 40mm thick

Made of a 40mm thick flexible sheet

Capacity: 16 Ounce

Head weight : 16 Oz

Maximum Hardness Removal : 110 grains/gal

Sealing & as a filler for most materials

Reliance 100112163 PVC Concentric Vent, 3" BESTSELLERS Made of a 40mm thickPVC (polyvinyl chloride) concentric vent 3 in. hub allows incoming air and outgoing exhaust in a single termination outlet assembly used for condensing tankless models TS 320 and TS 520 heaters. 3 in. hub allows incoming air and outgoing exhaust in a single termination outlet assembly Used for condensing tankless models TS 320 and TS 520 heaters Save time and money by reducing the amount of work required Simplify installation and only require one hole