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4 inch

$55.69
DuraVent 4" BV Round Type B Gas Vent Tall Cone Flat Roof Flashing - SKU: 4BVFF BVENT Almost never undersold. If you find a better price e-mail us their...

$11.29
DuraVent 4" BV Round Type B Gas Vent Tee Cap - SKU: 4BVTC BVENT Almost never undersold. If you find a better price e-mail us their quote and we'll...

$32.45
DuraVent 4" BV Round Type B Gas Vent Wall Band - SKU: 4BVWS BVENT Almost never undersold. If you find a better price e-mail us their quote and we'll...

$70.22
DuraVent 4" BV Round Type B Gas Vent Wall Support/Band Assembly - SKU: 4BVWSB BVENT Almost never undersold. If you find a better price e-mail us their...

$33.34
DuraVent 4" BV Round Type B Gas Vent Wall Thimble - SKU: 4BVWT BVENT Almost never undersold. If you find a better price e-mail us their quote and we'll...

$140.15
DuraVent 4"x10" BV Round Type B Gas Vent Increaser - SKU: 4BVX10 BVENT Almost never undersold. If you find a better price e-mail us their quote and...

$59.40
DuraVent 4"x3" BV Round Type B Gas Vent Reducer - SKU: 4BVR3 BVENT Almost never undersold. If you find a better price e-mail us their quote and we'll...

$101.70
DuraVent 4"x3"x4" BV Round Type B Gas Vent Wye 3" Branch 4" Base - SKU: 4BVY34 BVENT Almost never undersold. If you find a better price e-mail us their...

$131.91
DuraVent 4"x4"x3" BV Round Type B Gas Vent Reducing Tee - SKU: 4BVTR3 BVENT Almost never undersold. If you find a better price e-mail us their quote and...

$163.20
DuraVent 4"x4"x3" BV Round Type B Gas Vent Wye 4" Branch 3" Base - SKU: 4BVY43 BVENT Almost never undersold. If you find a better price e-mail us their...

$101.70
DuraVent 4"x4"x4" BV Round Type B Gas Vent Wye 4" Branch 4" Base - SKU: 4BVY44 BVENT Almost never undersold. If you find a better price e-mail us their...

$77.58
DuraVent 4"x5" BVO Oval Type B Gas Vent Increaser - SKU: 4BVOX5 BVENT Almost never undersold. If you find a better price e-mail us their quote and we'll...