09/27/2015
We are now shipping vent screens for use in applications where 4" hub or coupling terminations are in use. The PVS-IS4, https://pvcventscreens.com/product/pvs-is4/, provides 70% airflow and prevents insects and animals from entering intake and exhaust vents. The PVS-IS4 is ideally used in spring, summer and fall when insects are active or in regions where temperatures do not fall below freezing. For maximum airflow during winter, the PVS-RS4 maintains 90% airflow and is designed to prevent animals from entering high efficiency boilers, furnaces, heat pumps and hot water heaters. As with all of our PVS series vent screens, the screens are made with 316 stainless steel and are encased in a durable aluminum shell. Each screen is corrosion resistant and can be installed in under a minute without caulk or screws when using the included stainless steel internal wire clips. Additional information about our four inch PVC vent screens can be found on our website. Three inch and two inch models are also available in our store.