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Marathn Ex-Flow Vent HDPE

Marathn Ex-Flow Vent HDPE

Hi-density polyethylene (black) with locking vandal-proof cap prevents entry of wind blown rain or snow. Special one-way silicone rubber valve prevents moisture from re-entering the roofing system. Also available in ABS or PVC. Overall height 8", Base opening 5-1/4", Flange diameter 10-1/2". Recommended spacing: 1 per 1000 sq. ft.

Item #: 157020
Item Desc: Marathn Ex-Flow Vent HDPE
Weight: 0.8
Price Um: EA
Units/Pk: 25
Vents (DV4)