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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
They do not work well in wood
Not made for metal
Note: These are made for thin materials like metal
RLB-100 4" 4PK
970 si nfa (square inches of net free ventilation area)
4" Round Copper Vent Stainless Steel Vents They do not work wellCPR 100 4" Round Copper Vent CPR 100 4" These high quality round copper vents have a screen to keep insects out. They are easy to install in wood. Not made for glass, metal or PVC pipe. They fit into the hole made by a drill type hole saw and are held in place by knobs on the side of the vent. No nails or screws are needed. Fits into a 4 inch round hole. 3. 875 si nfa (square inches of net free ventilation area). Orders placed by 3 pm MT will ship by