California Redwood Oil-Based Wood Preservative 1 gal, Twp, Mfr#: TWP1511-1

TWP 1500 series is a low VOC formulation and should be used in place of TWP 100 series in low VOC states. TWP 1500 series is an EPA registered wood preservative which prevents structural damage and wood decay on exterior above ground wood surfaces such as untreated or previously treated fencing decking wood siding log homes and roofing.