Woodlife 00903 Classic Wood Preservative, 1gal, Clear (Pack of 4) For pressure treated and untreated wood Protects against mildew, decay and staining Controls warping, splitting, shrinking and swelling Active ingredient .2% Diethyl Trichloro 2 Pridnyl Phosph- orothiolate EPA Registered Wood Preservative, Reg.No. 1409-51